# Tabella di nuclidi

Nessuno (Isotopo stabile)  Decadimento beta  Emissione protonica
Emissione neutronica  Decadimento alfa  Fissione spontanea
Una tabella di nuclidi o tavola di nuclidi è un grafico a due dimensioni in cui sui due assi vengono rappresentati il numero di neutroni e il numero di protoni presenti in un nucleo atomico. Ogni punto presente sul grafico rappresenta quindi il nuclide di un elemento chimico reale o ipotizzato. Questo sistema di rappresentazione dei nuclidi offre una visione migliore delle caratteristiche degli isotopi rispetto alla più nota tavola periodica, la quale mostra solamente gli elementi e non tutti i loro isotopi.

## Descrizione e utilità

Distinguendo i vari isotopi di un elemento, una tavola di nuclidi è una semplice mappa del comportamento nucleare, o radioattivo, dei nuclidi. In una tale tabella, si rappresenta sull'asse X il numero di neutroni presenti nel nucleo di un isotopo, e sull'asse Y il numero di protoni, anche al di fuori dei confini della cosiddetta valle di stabilità (da non confondersi con l'isola di stabilità). Questo metodo di rappresentazione fu pubblicato per la prima volta da Giorgio Fea nel 1935, e ampliato poi da Emilio Segrè e Glenn Theodore Seaborg nel 1945. Nel 1958, Walter Seelmann-Eggebert e Gerda Pfennig pubblicarono la prima edizione della Tavola di nuclidi di Karlsruhe, la cui nona edizione è stata rilasciata nel 2015. Oggi esistono varie tavole di nuclidi, di cui quattro a larga diffusione: la tavola di nuclidi di Karlsruhe, la tavola universale di nuclidi di Strasburgo, la tavola di nuclidi redatta dalla JAEA (l'agenzia per l'energia atomica giapponese) e la tavola di nuclidi del Laboratorio per l'energia atomica Knolls.

## Tabella

La sottostante tabella mostra gli isotopi degli elementi chimici conosciuti, disposti da sinistra a destra per numero atomico crescente e dall'alto in basso per numero neutronico crescente. Per agevolarne la lettura, la tabella è stata divisa in più parti.
Il colore di ogni cella indica l'emivita di ogni isotopo come indicato nella legenda; se è presente un bordo colorato, allora il colore di questo indica l'emivita dell'isomero nucleare più stabile.

### Legenda

Legenda :
| | Emivita |
| El | < 10$^{−10}$ secondi |
| El | < 1 minuto |
| El | da 1 minuto a 1 ora |
| El | da 1 ora a 1 giorno |
| El | da 1 ora a 60 ore |
| El | da 60 ore a 10 anni |
| El | da 10 anni a 1.000 anni |
| El | da 1.000 anni a 100.000 anni |
| El | da 100.000 anni a 10 milioni di anni |
| El | da 10 milioni di anni a 50 milioni di anni |
| El | > 50 milioni di anni |
| El | Stabile |

### Da 1 a 20 protoni

| p | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| | | H | He | Li | Be | B | C | N | O | F | Ne | Na | Mg | Al | Si | P | S | Cl | Ar | K | Ca |
| n | | | | | | | | | | | | | | | | | | | | | |
| 0 | | $^1$H | | | | | | | | | | | | | | | | | | | |
| 1 | n | $^2$H | $^3$He | $^4$Li | | | | | | | | | | | | | | | | | |
| 2 | | $^3$H | $^4$He | $^5$Li | $^6$Be | $^7$B | $^8$C | | | | | | | | | | | | | | |
| 3 | | $^4$H | $^5$He | $^6$Li | $^7$Be | $^8$B | $^9$C | $^{10}$N | | | | | | | | | | | | | |
| 4 | | | $^6$He | $^7$Li | $^8$Be | $^9$B | $^{10}$C | $^{11}$N | $^{12}$O | | | | | | | | | | | | |
| 5 | | | $^7$He | $^8$Li | $^9$Be | $^{10}$B | $^{11}$C | $^{12}$N | $^{13}$O | $^{14}$F | | | | | | | | | | | |
| 6 | | | $^8$He | $^9$Li | $^{10}$Be | $^{11}$B | $^{12}$C | $^{13}$N | $^{14}$O | $^{15}$F | $^{16}$Ne | | | | | | | | | | |
| 7 | | | | $^{10}$Li | $^{11}$Be | $^{12}$B | $^{13}$C | $^{14}$N | $^{15}$O | $^{16}$F | $^{17}$Ne | $^{18}$Na | $^{19}$Mg | $^{20}$Al | | | | | | | |
| 8 | | | | $^{11}$Li | $^{12}$Be | $^{13}$B | $^{14}$C | $^{15}$N | $^{16}$O | $^{17}$F | $^{18}$Ne | $^{19}$Na | $^{20}$Mg | $^{21}$Al | $^{22}$Si | | | | | | |
| 9 | | | | | $^{13}$Be | $^{14}$B | $^{15}$C | $^{16}$N | $^{17}$O | $^{18}$F | $^{19}$Ne | $^{20}$Na | $^{21}$Mg | $^{22}$Al | $^{23}$Si | $^{24}$P | | | | | |
| 10 | | | | | $^{14}$Be | $^{15}$B | $^{16}$C | $^{17}$N | $^{18}$O | $^{19}$F | $^{20}$Ne | $^{21}$Na | $^{22}$Mg | $^{23}$Al | $^{24}$Si | $^{25}$P | $^{26}$S | | | | |
| 11 | | | | | | $^{16}$B | $^{17}$C | $^{18}$N | $^{19}$O | $^{20}$F | $^{21}$Ne | $^{22}$Na | $^{23}$Mg | $^{24}$Al | $^{25}$Si | $^{26}$P | $^{27}$S | $^{28}$Cl | | | |
| 12 | | | | | | $^{17}$B | $^{18}$C | $^{19}$N | $^{20}$O | $^{21}$F | $^{22}$Ne | $^{23}$Na | $^{24}$Mg | $^{25}$Al | $^{26}$Si | $^{27}$P | $^{28}$S | $^{29}$Cl | $^{30}$Ar | | |
| 13 | | | | | | | $^{19}$C | $^{20}$N | $^{21}$O | $^{22}$F | $^{23}$Ne | $^{24}$Na | $^{25}$Mg | $^{26}$Al | $^{27}$Si | $^{28}$P | $^{29}$S | $^{30}$Cl | $^{31}$Ar | $^{32}$K | |
| 14 | | | | | | | | $^{21}$N | $^{22}$O | $^{23}$F | $^{24}$Ne | $^{25}$Na | $^{26}$Mg | $^{27}$Al | $^{28}$Si | $^{29}$P | $^{30}$S | $^{31}$Cl | $^{32}$Ar | $^{33}$K | $^{34}$Ca |
| 15 | | | | | | | | | $^{23}$O | $^{24}$F | $^{25}$Ne | $^{26}$Na | $^{27}$Mg | $^{28}$Al | $^{29}$Si | $^{30}$P | $^{31}$S | $^{32}$Cl | $^{33}$Ar | $^{34}$K | $^{35}$Ca |
| 16 | | | | | | | | | $^{24}$O | $^{25}$F | $^{26}$Ne | $^{27}$Na | $^{28}$Mg | $^{29}$Al | $^{30}$Si | $^{31}$P | $^{32}$S | $^{33}$Cl | $^{34}$Ar | $^{35}$K | $^{36}$Ca |
| 17 | | | | | | | | | | $^{26}$F | $^{27}$Ne | $^{28}$Na | $^{29}$Mg | $^{30}$Al | $^{31}$Si | $^{32}$P | $^{33}$S | $^{34}$Cl | $^{35}$Ar | $^{36}$K | $^{37}$Ca |
| 18 | | | | | | | | | | $^{27}$F | $^{28}$Ne | $^{29}$Na | $^{30}$Mg | $^{31}$Al | $^{32}$Si | $^{33}$P | $^{34}$S | $^{35}$Cl | $^{36}$Ar | $^{37}$K | $^{38}$Ca |
| 19 | | | | | | | | | | | $^{29}$Ne | $^{30}$Na | $^{31}$Mg | $^{32}$Al | $^{33}$Si | $^{34}$P | $^{35}$S | $^{36}$Cl | $^{37}$Ar | $^{38}$K | $^{39}$Ca |
| 20 | | | | | | | | | | | $^{30}$Ne | $^{31}$Na | $^{32}$Mg | $^{33}$Al | $^{34}$Si | $^{35}$P | $^{36}$S | $^{37}$Cl | $^{38}$Ar | $^{39}$K | $^{40}$Ca |
| 21 | | | | | | | | | | | | $^{32}$Na | $^{33}$Mg | $^{34}$Al | $^{35}$Si | $^{36}$P | $^{37}$S | $^{38}$Cl | $^{39}$Ar | $^{40}$K | $^{41}$Ca |
| 22 | | | | | | | | | | | | $^{33}$Na | $^{34}$Mg | $^{35}$Al | $^{36}$Si | $^{37}$P | $^{38}$S | $^{39}$Cl | $^{40}$Ar | $^{41}$K | $^{42}$Ca |
| 23 | | | | | | | | | | | | | $^{35}$Mg | $^{36}$Al | $^{37}$Si | $^{38}$P | $^{39}$S | $^{40}$Cl | $^{41}$Ar | $^{42}$K | $^{43}$Ca |
| 24 | | | | | | | | | | | | | | $^{37}$Al | $^{38}$Si | $^{39}$P | $^{40}$S | $^{41}$Cl | $^{42}$Ar | $^{43}$K | $^{44}$Ca |
| 25 | | | | | | | | | | | | | | | $^{39}$Si | $^{40}$P | $^{41}$S | $^{42}$Cl | $^{43}$Ar | $^{44}$K | $^{45}$Ca |
| 26 | | | | | | | | | | | | | | | | $^{41}$P | $^{42}$S | $^{43}$Cl | $^{44}$Ar | $^{45}$K | $^{46}$Ca |
| 27 | | | | | | | | | | | | | | | | | $^{43}$S | $^{44}$Cl | $^{45}$Ar | $^{46}$K | $^{47}$Ca |
| 28 | | | | | | | | | | | | | | | | | $^{44}$S | $^{45}$Cl | $^{46}$Ar | $^{47}$K | $^{48}$Ca |
| 29 | | | | | | | | | | | | | | | | | | $^{46}$Cl | $^{47}$Ar | $^{48}$K | $^{49}$Ca |
| 30 | | | | | | | | | | | | | | | | | | | $^{48}$Ar | $^{49}$K | $^{50}$Ca |
| 31 | | | | | | | | | | | | | | | | | | | | $^{50}$K | $^{51}$Ca |
| 32 | | | | | | | | | | | | | | | | | | | | $^{51}$K | $^{52}$Ca |

### Da 21 a 40 protoni

| p | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 |
| | Sc | Ti | V | Cr | Mn | Fe | Co | Ni | Cu | Zn | Ga | Ge | As | Se | Br | Kr | Rb | Sr | Y | Zr |
| n | | | | | | | | | | | | | | | | | | | | |
| 16 | $^{37}$Sc | $^{38}$Ti | | | | | | | | | | | | | | | | | | |
| 17 | $^{38}$Sc | $^{39}$Ti | $^{40}$V | | | | | | | | | | | | | | | | | |
| 18 | $^{39}$Sc | $^{40}$Ti | $^{41}$V | $^{42}$Cr | | | | | | | | | | | | | | | | |
| 19 | $^{40}$Sc | $^{41}$Ti | $^{42}$V | $^{43}$Cr | $^{44}$Mn | $^{45}$Fe | | | | | | | | | | | | | | |
| 20 | $^{41}$Sc | $^{42}$Ti | $^{43}$V | $^{44}$Cr | $^{45}$Mn | $^{46}$Fe | $^{47}$Co | $^{48}$Ni | | | | | | | | | | | | |
| 21 | $^{42}$Sc | $^{43}$Ti | $^{44}$V | $^{45}$Cr | $^{46}$Mn | $^{47}$Fe | $^{48}$Co | $^{49}$Ni | | | | | | | | | | | | |
| 22 | $^{43}$Sc | $^{44}$Ti | $^{45}$V | $^{46}$Cr | $^{47}$Mn | $^{48}$Fe | $^{49}$Co | $^{50}$Ni | | | | | | | | | | | | |
| 23 | $^{44}$Sc | $^{45}$Ti | $^{46}$V | $^{47}$Cr | $^{48}$Mn | $^{49}$Fe | $^{50}$Co | $^{51}$Ni | $^{52}$Cu | | | | | | | | | | | |
| 24 | $^{45}$Sc | $^{46}$Ti | $^{47}$V | $^{48}$Cr | $^{49}$Mn | $^{50}$Fe | $^{51}$Co | $^{52}$Ni | $^{53}$Cu | $^{54}$Zn | | | | | | | | | | |
| 25 | $^{46}$Sc | $^{47}$Ti | $^{48}$V | $^{49}$Cr | $^{50}$Mn | $^{51}$Fe | $^{52}$Co | $^{53}$Ni | $^{54}$Cu | $^{55}$Zn | $^{56}$Ga | | | | | | | | | |
| 26 | $^{47}$Sc | $^{48}$Ti | $^{49}$V | $^{50}$Cr | $^{51}$Mn | $^{52}$Fe | $^{53}$Co | $^{54}$Ni | $^{55}$Cu | $^{56}$Zn | $^{57}$Ga | $^{58}$Ge | | | | | | | | |
| 27 | $^{48}$Sc | $^{49}$Ti | $^{50}$V | $^{51}$Cr | $^{52}$Mn | $^{53}$Fe | $^{54}$Co | $^{55}$Ni | $^{56}$Cu | $^{57}$Zn | $^{58}$Ga | $^{59}$Ge | $^{60}$As | | | | | | | |
| 28 | $^{49}$Sc | $^{50}$Ti | $^{51}$V | $^{52}$Cr | $^{53}$Mn | $^{54}$Fe | $^{55}$Co | $^{56}$Ni | $^{57}$Cu | $^{58}$Zn | $^{59}$Ga | $^{60}$Ge | $^{61}$As | | | | | | | |
| 29 | $^{50}$Sc | $^{51}$Ti | $^{52}$V | $^{53}$Cr | $^{54}$Mn | $^{55}$Fe | $^{56}$Co | $^{57}$Ni | $^{58}$Cu | $^{59}$Zn | $^{60}$Ga | $^{61}$Ge | $^{62}$As | | | | | | | |
| 30 | $^{51}$Sc | $^{52}$Ti | $^{53}$V | $^{54}$Cr | $^{55}$Mn | $^{56}$Fe | $^{57}$Co | $^{58}$Ni | $^{59}$Cu | $^{60}$Zn | $^{61}$Ga | $^{62}$Ge | $^{63}$As | | | | | | | |
| 31 | $^{52}$Sc | $^{53}$Ti | $^{54}$V | $^{55}$Cr | $^{56}$Mn | $^{57}$Fe | $^{58}$Co | $^{59}$Ni | $^{60}$Cu | $^{61}$Zn | $^{62}$Ga | $^{63}$Ge | $^{64}$As | $^{65}$Se | $^{66}$Br | | | | | |
| 32 | $^{53}$Sc | $^{54}$Ti | $^{55}$V | $^{56}$Cr | $^{57}$Mn | $^{58}$Fe | $^{59}$Co | $^{60}$Ni | $^{61}$Cu | $^{62}$Zn | $^{63}$Ga | $^{64}$Ge | $^{65}$As | $^{66}$Se | $^{67}$Br | | | | | |
| 33 | $^{54}$Sc | $^{55}$Ti | $^{56}$V | $^{57}$Cr | $^{58}$Mn | $^{59}$Fe | $^{60}$Co | $^{61}$Ni | $^{62}$Cu | $^{63}$Zn | $^{64}$Ga | $^{65}$Ge | $^{66}$As | $^{67}$Se | $^{68}$Br | $^{69}$Kr | | | | |
| 34 | $^{55}$Sc | $^{56}$Ti | $^{57}$V | $^{58}$Cr | $^{59}$Mn | $^{60}$Fe | $^{61}$Co | $^{62}$Ni | $^{63}$Cu | $^{64}$Zn | $^{65}$Ga | $^{66}$Ge | $^{67}$As | $^{68}$Se | $^{69}$Br | $^{70}$Kr | $^{71}$Rb | | | |
| 35 | $^{56}$Sc | $^{57}$Ti | $^{58}$V | $^{59}$Cr | $^{60}$Mn | $^{61}$Fe | $^{62}$Co | $^{63}$Ni | $^{64}$Cu | $^{65}$Zn | $^{66}$Ga | $^{67}$Ge | $^{68}$As | $^{69}$Se | $^{70}$Br | $^{71}$Kr | $^{72}$Rb | | | |
| 36 | $^{57}$Sc | $^{58}$Ti | $^{59}$V | $^{60}$Cr | $^{61}$Mn | $^{62}$Fe | $^{63}$Co | $^{64}$Ni | $^{65}$Cu | $^{66}$Zn | $^{67}$Ga | $^{68}$Ge | $^{69}$As | $^{70}$Se | $^{71}$Br | $^{72}$Kr | $^{73}$Rb | | | |
| 37 | $^{58}$Sc | $^{59}$Ti | $^{60}$V | $^{61}$Cr | $^{62}$Mn | $^{63}$Fe | $^{64}$Co | $^{65}$Ni | $^{66}$Cu | $^{67}$Zn | $^{68}$Ga | $^{69}$Ge | $^{70}$As | $^{71}$Se | $^{72}$Br | $^{73}$Kr | $^{74}$Rb | | | |
| 38 | $^{59}$Sc | $^{60}$Ti | $^{61}$V | $^{62}$Cr | $^{63}$Mn | $^{64}$Fe | $^{65}$Co | $^{66}$Ni | $^{67}$Cu | $^{68}$Zn | $^{69}$Ga | $^{70}$Ge | $^{71}$As | $^{72}$Se | $^{73}$Br | $^{74}$Kr | $^{75}$Rb | | | |
| 39 | $^{60}$Sc | $^{61}$Ti | $^{62}$V | $^{63}$Cr | $^{64}$Mn | $^{65}$Fe | $^{66}$Co | $^{67}$Ni | $^{68}$Cu | $^{69}$Zn | $^{70}$Ga | $^{71}$Ge | $^{72}$As | $^{73}$Se | $^{74}$Br | $^{75}$Kr | $^{76}$Rb | $^{77}$Sr | $^{78}$Y | |
| 40 | | $^{62}$Ti | $^{63}$V | $^{64}$Cr | $^{65}$Mn | $^{66}$Fe | $^{67}$Co | $^{68}$Ni | $^{69}$Cu | $^{70}$Zn | $^{71}$Ga | $^{72}$Ge | $^{73}$As | $^{74}$Se | $^{75}$Br | $^{76}$Kr | $^{77}$Rb | $^{78}$Sr | $^{79}$Y | $^{80}$Zr |
| 41 | | $^{63}$Ti | $^{64}$V | $^{65}$Cr | $^{66}$Mn | $^{67}$Fe | $^{68}$Co | $^{69}$Ni | $^{70}$Cu | $^{71}$Zn | $^{72}$Ga | $^{73}$Ge | $^{74}$As | $^{75}$Se | $^{76}$Br | $^{77}$Kr | $^{78}$Rb | $^{79}$Sr | $^{80}$Y | $^{81}$Zr |
| 42 | | | $^{65}$V | $^{66}$Cr | $^{67}$Mn | $^{68}$Fe | $^{69}$Co | $^{70}$Ni | $^{71}$Cu | $^{72}$Zn | $^{73}$Ga | $^{74}$Ge | $^{75}$As | $^{76}$Se | $^{77}$Br | $^{78}$Kr | $^{79}$Rb | $^{80}$Sr | $^{81}$Y | $^{82}$Zr |
| 43 | | | | $^{67}$Cr | $^{68}$Mn | $^{69}$Fe | $^{70}$Co | $^{71}$Ni | $^{72}$Cu | $^{73}$Zn | $^{74}$Ga | $^{75}$Ge | $^{76}$As | $^{77}$Se | $^{78}$Br | $^{79}$Kr | $^{80}$Rb | $^{81}$Sr | $^{82}$Y | $^{83}$Zr |
| 44 | | | | | $^{69}$Mn | $^{70}$Fe | $^{71}$Co | $^{72}$Ni | $^{73}$Cu | $^{74}$Zn | $^{75}$Ga | $^{76}$Ge | $^{77}$As | $^{78}$Se | $^{79}$Br | $^{80}$Kr | $^{81}$Rb | $^{82}$Sr | $^{83}$Y | $^{84}$Zr |
| 45 | | | | | | $^{71}$Fe | $^{72}$Co | $^{73}$Ni | $^{74}$Cu | $^{75}$Zn | $^{76}$Ga | $^{77}$Ge | $^{78}$As | $^{79}$Se | $^{80}$Br | $^{81}$Kr | $^{82}$Rb | $^{83}$Sr | $^{84}$Y | $^{85}$Zr |
| 46 | | | | | | $^{72}$Fe | $^{73}$Co | $^{74}$Ni | $^{75}$Cu | $^{76}$Zn | $^{77}$Ga | $^{78}$Ge | $^{79}$As | $^{80}$Se | $^{81}$Br | $^{82}$Kr | $^{83}$Rb | $^{84}$Sr | $^{85}$Y | $^{86}$Zr |
| 47 | | | | | | | $^{74}$Co | $^{75}$Ni | $^{76}$Cu | $^{77}$Zn | $^{78}$Ga | $^{79}$Ge | $^{80}$As | $^{81}$Se | $^{82}$Br | $^{83}$Kr | $^{84}$Rb | $^{85}$Sr | $^{86}$Y | $^{87}$Zr |
| 48 | | | | | | | $^{75}$Co | $^{76}$Ni | $^{77}$Cu | $^{78}$Zn | $^{79}$Ga | $^{80}$Ge | $^{81}$As | $^{82}$Se | $^{83}$Br | $^{84}$Kr | $^{85}$Rb | $^{86}$Sr | $^{87}$Y | $^{88}$Zr |
| 49 | | | | | | | | $^{77}$Ni | $^{78}$Cu | $^{79}$Zn | $^{80}$Ga | $^{81}$Ge | $^{82}$As | $^{83}$Se | $^{84}$Br | $^{85}$Kr | $^{86}$Rb | $^{87}$Sr | $^{88}$Y | $^{89}$Zr |
| 50 | | | | | | | | $^{78}$Ni | $^{79}$Cu | $^{80}$Zn | $^{81}$Ga | $^{82}$Ge | $^{83}$As | $^{84}$Se | $^{85}$Br | $^{86}$Kr | $^{87}$Rb | $^{88}$Sr | $^{89}$Y | $^{90}$Zr |
| 51 | | | | | | | | | $^{79}$Cu | $^{81}$Zn | $^{82}$Ga | $^{83}$Ge | $^{84}$As | $^{85}$Se | $^{86}$Br | $^{87}$Kr | $^{88}$Rb | $^{89}$Sr | $^{90}$Y | $^{91}$Zr |
| 52 | | | | | | | | | | $^{82}$Zn | $^{83}$Ga | $^{84}$Ge | $^{85}$As | $^{86}$Se | $^{87}$Br | $^{88}$Kr | $^{89}$Rb | $^{90}$Sr | $^{91}$Y | $^{92}$Zr |
| 53 | | | | | | | | | | $^{83}$Zn | $^{84}$Ga | $^{85}$Ge | $^{86}$As | $^{87}$Se | $^{88}$Br | $^{89}$Kr | $^{90}$Rb | $^{91}$Sr | $^{92}$Y | $^{93}$Zr |
| 54 | | | | | | | | | | | $^{85}$Ga | $^{86}$Ge | $^{87}$As | $^{88}$Se | $^{89}$Br | $^{90}$Kr | $^{91}$Rb | $^{92}$Sr | $^{93}$Y | $^{94}$Zr |
| 55 | | | | | | | | | | | $^{86}$Ga | $^{87}$Ge | $^{88}$As | $^{89}$Se | $^{90}$Br | $^{91}$Kr | $^{92}$Rb | $^{93}$Sr | $^{94}$Y | $^{95}$Zr |
| 56 | | | | | | | | | | | | $^{88}$Ge | $^{89}$As | $^{90}$Se | $^{91}$Br | $^{92}$Kr | $^{93}$Rb | $^{94}$Sr | $^{95}$Y | $^{96}$Zr |
| 57 | | | | | | | | | | | | $^{89}$Ge | $^{90}$As | $^{91}$Se | $^{92}$Br | $^{93}$Kr | $^{94}$Rb | $^{95}$Sr | $^{96}$Y | $^{97}$Zr |
| 58 | | | | | | | | | | | | | $^{91}$As | $^{92}$Se | $^{93}$Br | $^{94}$Kr | $^{95}$Rb | $^{96}$Sr | $^{97}$Y | $^{98}$Zr |
| 59 | | | | | | | | | | | | | $^{92}$As | $^{93}$Se | $^{94}$Br | $^{95}$Kr | $^{96}$Rb | $^{97}$Sr | $^{98}$Y | $^{99}$Zr |
| 60 | | | | | | | | | | | | | | $^{94}$Se | $^{95}$Br | $^{96}$Kr | $^{97}$Rb | $^{98}$Sr | $^{99}$Y | $^{100}$Zr |
| 61 | | | | | | | | | | | | | | | $^{96}$Br | $^{97}$Kr | $^{98}$Rb | $^{99}$Sr | $^{100}$Y | $^{101}$Zr |
| 62 | | | | | | | | | | | | | | | $^{97}$Br | $^{98}$Kr | $^{99}$Rb | $^{100}$Sr | $^{101}$Y | $^{102}$Zr |
| 63 | | | | | | | | | | | | | | | | $^{99}$Kr | $^{100}$Rb | $^{101}$Sr | $^{102}$Y | $^{103}$Zr |
| 64 | | | | | | | | | | | | | | | | $^{100}$Kr | $^{101}$Rb | $^{102}$Sr | $^{103}$Y | $^{104}$Zr |

### Da 41 a 60 protoni

| p | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 |
| | Nb | Mo | Tc | Ru | Rh | Pd | Ag | Cd | In | Sn | Sb | Te | I | Xe | Cs | Ba | La | Ce | Pr | Nd |
| n | | | | | | | | | | | | | | | | | | | | |
| 42 | $^{83}$Nb | $^{84}$Mo | | | | | | | | | | | | | | | | | | |
| 43 | $^{84}$Nb | $^{85}$Mo | $^{86}$Tc | | | | | | | | | | | | | | | | | |
| 44 | $^{85}$Nb | $^{86}$Mo | $^{87}$Tc | $^{88}$Ru | | | | | | | | | | | | | | | | |
| 45 | $^{86}$Nb | $^{87}$Mo | $^{88}$Tc | $^{89}$Ru | $^{90}$Rh | | | | | | | | | | | | | | | |
| 46 | $^{87}$Nb | $^{88}$Mo | $^{89}$Tc | $^{90}$Ru | $^{91}$Rh | $^{92}$Pd | | | | | | | | | | | | | | |
| 47 | $^{88}$Nb | $^{89}$Mo | $^{90}$Tc | $^{91}$Ru | $^{92}$Rh | $^{93}$Pd | $^{94}$Ag | | | | | | | | | | | | | |
| 48 | $^{89}$Nb | $^{90}$Mo | $^{91}$Tc | $^{92}$Ru | $^{93}$Rh | $^{94}$Pd | $^{95}$Ag | $^{96}$Cd | | | | | | | | | | | | |
| 49 | $^{90}$Nb | $^{91}$Mo | $^{92}$Tc | $^{93}$Ru | $^{94}$Rh | $^{95}$Pd | $^{96}$Ag | $^{97}$Cd | $^{98}$In | | | | | | | | | | | |
| 50 | $^{91}$Nb | $^{92}$Mo | $^{93}$Tc | $^{94}$Ru | $^{95}$Rh | $^{96}$Pd | $^{97}$Ag | $^{98}$Cd | $^{99}$In | $^{100}$Sn | | | | | | | | | | |
| 51 | $^{92}$Nb | $^{93}$Mo | $^{94}$Tc | $^{95}$Ru | $^{96}$Rh | $^{97}$Pd | $^{98}$Ag | $^{99}$Cd | $^{100}$In | $^{101}$Sn | | | | | | | | | | |
| 52 | $^{93}$Nb | $^{94}$Mo | $^{95}$Tc | $^{96}$Ru | $^{97}$Rh | $^{98}$Pd | $^{99}$Ag | $^{100}$Cd | $^{101}$In | $^{102}$Sn | | | | | | | | | | |
| 53 | $^{94}$Nb | $^{95}$Mo | $^{96}$Tc | $^{97}$Ru | $^{98}$Rh | $^{99}$Pd | $^{100}$Ag | $^{101}$Cd | $^{102}$In | $^{103}$Sn | | | | | | | | | | |
| 54 | $^{95}$Nb | $^{96}$Mo | $^{97}$Tc | $^{98}$Ru | $^{99}$Rh | $^{100}$Pd | $^{101}$Ag | $^{102}$Cd | $^{103}$In | $^{104}$Sn | $^{105}$Sb | | | | | | | | | |
| 55 | $^{96}$Nb | $^{97}$Mo | $^{98}$Tc | $^{99}$Ru | $^{100}$Rh | $^{101}$Pd | $^{102}$Ag | $^{103}$Cd | $^{104}$In | $^{105}$Sn | $^{106}$Sb | $^{107}$Te | | | | | | | | |
| 56 | $^{97}$Nb | $^{98}$Mo | $^{99}$Tc | $^{100}$Ru | $^{101}$Rh | $^{102}$Pd | $^{103}$Ag | $^{104}$Cd | $^{105}$In | $^{106}$Sn | $^{107}$Sb | $^{108}$Te | | | | | | | | |
| 57 | $^{98}$Nb | $^{99}$Mo | $^{100}$Tc | $^{101}$Ru | $^{102}$Rh | $^{103}$Pd | $^{104}$Ag | $^{105}$Cd | $^{106}$In | $^{107}$Sn | $^{108}$Sb | $^{109}$Te | | | | | | | | |
| 58 | $^{99}$Nb | $^{100}$Mo | $^{101}$Tc | $^{102}$Ru | $^{103}$Rh | $^{104}$Pd | $^{105}$Ag | $^{106}$Cd | $^{107}$In | $^{108}$Sn | $^{109}$Sb | $^{110}$Te | $^{111}$I | | | | | | | |
| 59 | $^{100}$Nb | $^{101}$Mo | $^{102}$Tc | $^{103}$Ru | $^{104}$Rh | $^{105}$Pd | $^{106}$Ag | $^{107}$Cd | $^{108}$In | $^{109}$Sn | $^{110}$Sb | $^{111}$Te | $^{112}$I | $^{113}$Xe | $^{114}$Cs | $^{115}$Ba | | | | |
| 60 | $^{101}$Nb | $^{102}$Mo | $^{103}$Tc | $^{104}$Ru | $^{105}$Rh | $^{106}$Pd | $^{107}$Ag | $^{108}$Cd | $^{109}$In | $^{110}$Sn | $^{111}$Sb | $^{112}$Te | $^{113}$I | $^{114}$Xe | $^{115}$Cs | | | | | |
| 61 | $^{102}$Nb | $^{103}$Mo | $^{104}$Tc | $^{105}$Ru | $^{106}$Rh | $^{107}$Pd | $^{108}$Ag | $^{109}$Cd | $^{110}$In | $^{111}$Sn | $^{112}$Sb | $^{113}$Te | $^{114}$I | $^{115}$Xe | $^{116}$Cs | | | | | |
| 62 | $^{103}$Nb | $^{104}$Mo | $^{105}$Tc | $^{106}$Ru | $^{107}$Rh | $^{108}$Pd | $^{109}$Ag | $^{110}$Cd | $^{111}$In | $^{112}$Sn | $^{113}$Sb | $^{114}$Te | $^{115}$I | $^{116}$Xe | $^{117}$Cs | $^{118}$Ba | | | | |
| 63 | $^{104}$Nb | $^{105}$Mo | $^{106}$Tc | $^{107}$Ru | $^{108}$Rh | $^{109}$Pd | $^{110}$Ag | $^{111}$Cd | $^{112}$In | $^{113}$Sn | $^{114}$Sb | $^{115}$Te | $^{116}$I | $^{117}$Xe | $^{118}$Cs | $^{119}$Ba | | | | |
| 64 | $^{105}$Nb | $^{106}$Mo | $^{107}$Tc | $^{108}$Ru | $^{109}$Rh | $^{110}$Pd | $^{111}$Ag | $^{112}$Cd | $^{113}$In | $^{114}$Sn | $^{115}$Sb | $^{116}$Te | $^{117}$I | $^{118}$Xe | $^{119}$Cs | $^{120}$Ba | $^{121}$La | | | |
| 65 | $^{106}$Nb | $^{107}$Mo | $^{108}$Tc | $^{109}$Ru | $^{110}$Rh | $^{111}$Pd | $^{112}$Ag | $^{113}$Cd | $^{114}$In | $^{115}$Sn | $^{116}$Sb | $^{117}$Te | $^{118}$I | $^{119}$Xe | $^{120}$Cs | $^{121}$Ba | $^{122}$La | $^{123}$Ce | | |
| 66 | $^{107}$Nb | $^{108}$Mo | $^{109}$Tc | $^{110}$Ru | $^{111}$Rh | $^{112}$Pd | $^{113}$Ag | $^{114}$Cd | $^{115}$In | $^{116}$Sn | $^{117}$Sb | $^{118}$Te | $^{119}$I | $^{120}$Xe | $^{121}$Cs | $^{122}$Ba | $^{123}$La | $^{124}$Ce | $^{125}$Pr | $^{126}$Nd |
| 67 | | $^{109}$Mo | $^{110}$Tc | $^{111}$Ru | $^{112}$Rh | $^{113}$Pd | $^{114}$Ag | $^{115}$Cd | $^{116}$In | $^{117}$Sn | $^{118}$Sb | $^{119}$Te | $^{120}$I | $^{121}$Xe | $^{122}$Cs | $^{123}$Ba | $^{124}$La | $^{125}$Ce | $^{126}$Pr | $^{127}$Nd |
| 68 | | $^{110}$Mo | $^{111}$Tc | $^{112}$Ru | $^{113}$Rh | $^{114}$Pd | $^{115}$Ag | $^{116}$Cd | $^{117}$In | $^{118}$Sn | $^{119}$Sb | $^{120}$Te | $^{121}$I | $^{122}$Xe | $^{123}$Cs | $^{124}$Ba | $^{125}$La | $^{126}$Ce | $^{127}$Pr | $^{128}$Nd |
| 69 | | | $^{112}$Tc | $^{113}$Ru | $^{114}$Rh | $^{115}$Pd | $^{116}$Ag | $^{117}$Cd | $^{118}$In | $^{119}$Sn | $^{120}$Sb | $^{121}$Te | $^{122}$I | $^{123}$Xe | $^{124}$Cs | $^{125}$Ba | $^{126}$La | $^{127}$Ce | $^{128}$Pr | $^{129}$Nd |
| 70 | | | $^{113}$Tc | $^{114}$Ru | $^{115}$Rh | $^{116}$Pd | $^{117}$Ag | $^{118}$Cd | $^{119}$In | $^{120}$Sn | $^{121}$Sb | $^{122}$Te | $^{123}$I | $^{124}$Xe | $^{125}$Cs | $^{126}$Ba | $^{127}$La | $^{128}$Ce | $^{129}$Pr | $^{130}$Nd |
| 71 | | | | $^{115}$Ru | $^{116}$Rh | $^{117}$Pd | $^{118}$Ag | $^{119}$Cd | $^{120}$In | $^{121}$Sn | $^{122}$Sb | $^{123}$Te | $^{124}$I | $^{125}$Xe | $^{126}$Cs | $^{127}$Ba | $^{128}$La | $^{129}$Ce | $^{130}$Pr | $^{131}$Nd |
| 72 | | | | | $^{117}$Rh | $^{118}$Pd | $^{119}$Ag | $^{120}$Cd | $^{121}$In | $^{122}$Sn | $^{123}$Sb | $^{124}$Te | $^{125}$I | $^{126}$Xe | $^{127}$Cs | $^{128}$Ba | $^{129}$La | $^{130}$Ce | $^{131}$Pr | $^{132}$Nd |
| 73 | | | | | | $^{119}$Pd | $^{120}$Ag | $^{121}$Cd | $^{122}$In | $^{123}$Sn | $^{124}$Sb | $^{125}$Te | $^{126}$I | $^{127}$Xe | $^{128}$Cs | $^{129}$Ba | $^{130}$La | $^{131}$Ce | $^{132}$Pr | $^{133}$Nd |
| 74 | | | | | | $^{120}$Pd | $^{121}$Ag | $^{122}$Cd | $^{123}$In | $^{124}$Sn | $^{125}$Sb | $^{126}$Te | $^{127}$I | $^{128}$Xe | $^{129}$Cs | $^{130}$Ba | $^{131}$La | $^{132}$Ce | $^{133}$Pr | $^{134}$Nd |
| 75 | | | | | | | $^{122}$Ag | $^{123}$Cd | $^{124}$In | $^{125}$Sn | $^{126}$Sb | $^{127}$Te | $^{128}$I | $^{129}$Xe | $^{130}$Cs | $^{131}$Ba | $^{132}$La | $^{133}$Ce | $^{134}$Pr | $^{135}$Nd |
| 76 | | | | | | | $^{123}$Ag | $^{124}$Cd | $^{125}$In | $^{126}$Sn | $^{127}$Sb | $^{128}$Te | $^{129}$I | $^{130}$Xe | $^{131}$Cs | $^{132}$Ba | $^{133}$La | $^{134}$Ce | $^{135}$Pr | $^{136}$Nd |
| 77 | | | | | | | | $^{125}$Cd | $^{126}$In | $^{127}$Sn | $^{128}$Sb | $^{129}$Te | $^{130}$I | $^{131}$Xe | $^{132}$Cs | $^{133}$Ba | $^{134}$La | $^{135}$Ce | $^{136}$Pr | $^{137}$Nd |
| 78 | | | | | | | | $^{126}$Cd | $^{127}$In | $^{128}$Sn | $^{129}$Sb | $^{130}$Te | $^{131}$I | $^{132}$Xe | $^{133}$Cs | $^{134}$Ba | $^{135}$La | $^{136}$Ce | $^{137}$Pr | $^{138}$Nd |
| 79 | | | | | | | | $^{127}$Cd | $^{128}$In | $^{129}$Sn | $^{130}$Sb | $^{131}$Te | $^{132}$I | $^{133}$Xe | $^{134}$Cs | $^{135}$Ba | $^{136}$La | $^{137}$Ce | $^{138}$Pr | $^{139}$Nd |
| 80 | | | | | | | | $^{128}$Cd | $^{129}$In | $^{130}$Sn | $^{131}$Sb | $^{132}$Te | $^{133}$I | $^{134}$Xe | $^{135}$Cs | $^{136}$Ba | $^{137}$La | $^{138}$Ce | $^{139}$Pr | $^{140}$Nd |
| 81 | | | | | | | | | $^{130}$In | $^{131}$Sn | $^{132}$Sb | $^{133}$Te | $^{134}$I | $^{135}$Xe | $^{136}$Cs | $^{137}$Ba | $^{138}$La | $^{139}$Ce | $^{140}$Pr | $^{141}$Nd |
| 82 | | | | | | | | | $^{131}$In | $^{132}$Sn | $^{133}$Sb | $^{134}$Te | $^{135}$I | $^{136}$Xe | $^{137}$Cs | $^{138}$Ba | $^{139}$La | $^{140}$Ce | $^{141}$Pr | $^{142}$Nd |
| 83 | | | | | | | | | $^{132}$In | $^{133}$Sn | $^{134}$Sb | $^{135}$Te | $^{136}$I | $^{137}$Xe | $^{138}$Cs | $^{139}$Ba | $^{140}$La | $^{141}$Ce | $^{142}$Pr | $^{143}$Nd |
| 84 | | | | | | | | | | $^{134}$Sn | $^{135}$Sb | $^{136}$Te | $^{137}$I | $^{138}$Xe | $^{139}$Cs | $^{140}$Ba | $^{141}$La | $^{142}$Ce | $^{143}$Pr | $^{144}$Nd |
| 85 | | | | | | | | | | | $^{136}$Sb | $^{137}$Te | $^{138}$I | $^{139}$Xe | $^{140}$Cs | $^{141}$Ba | $^{142}$La | $^{143}$Ce | $^{144}$Pr | $^{145}$Nd |
| 86 | | | | | | | | | | | | $^{138}$Te | $^{139}$I | $^{140}$Xe | $^{141}$Cs | $^{142}$Ba | $^{143}$La | $^{144}$Ce | $^{145}$Pr | $^{146}$Nd |
| 87 | | | | | | | | | | | | | $^{140}$I | $^{141}$Xe | $^{142}$Cs | $^{143}$Ba | $^{144}$La | $^{145}$Ce | $^{146}$Pr | $^{147}$Nd |
| 88 | | | | | | | | | | | | | $^{141}$I | $^{142}$Xe | $^{143}$Cs | $^{144}$Ba | $^{145}$La | $^{146}$Ce | $^{147}$Pr | $^{148}$Nd |
| 89 | | | | | | | | | | | | | $^{142}$I | $^{143}$Xe | $^{144}$Cs | $^{145}$Ba | $^{146}$La | $^{147}$Ce | $^{148}$Pr | $^{149}$Nd |
| 90 | | | | | | | | | | | | | | $^{144}$Xe | $^{145}$Cs | $^{146}$Ba | $^{147}$La | $^{148}$Ce | $^{149}$Pr | $^{150}$Nd |
| 91 | | | | | | | | | | | | | | $^{145}$Xe | $^{146}$Cs | $^{147}$Ba | $^{148}$La | $^{149}$Ce | $^{150}$Pr | $^{151}$Nd |
| 92 | | | | | | | | | | | | | | | $^{147}$Cs | $^{148}$Ba | $^{149}$La | $^{150}$Ce | $^{151}$Pr | $^{152}$Nd |
| 93 | | | | | | | | | | | | | | | | $^{149}$Ba | $^{150}$La | $^{151}$Ce | $^{152}$Pr | $^{153}$Nd |
| 94 | | | | | | | | | | | | | | | | | | $^{152}$Ce | $^{153}$Pr | $^{154}$Nd |
| 95 | | | | | | | | | | | | | | | | | | | $^{154}$Pr | $^{155}$Nd |
| 96 | | | | | | | | | | | | | | | | | | | | $^{156}$Nd |

### Da 61 a 80 protoni

| p | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 |
| | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg |
| n | | | | | | | | | | | | | | | | | | | | |
| 70 | $^{131}$Pm | $^{132}$Sm | | | | | | | | | | | | | | | | | | |
| 71 | $^{132}$Pm | $^{133}$Sm | | | | | | | | | | | | | | | | | | |
| 72 | $^{133}$Pm | $^{134}$Sm | $^{135}$Eu | | | | | | | | | | | | | | | | | |
| 73 | $^{134}$Pm | $^{135}$Sm | $^{136}$Eu | $^{137}$Gd | | | | | | | | | | | | | | | | |
| 74 | $^{135}$Pm | $^{136}$Sm | $^{137}$Eu | $^{138}$Gd | $^{139}$Tb | | | | | | | | | | | | | | | |
| 75 | $^{136}$Pm | $^{137}$Sm | $^{138}$Eu | $^{139}$Gd | $^{140}$Tb | | | | | | | | | | | | | | | |
| 76 | $^{137}$Pm | $^{138}$Sm | $^{139}$Eu | $^{140}$Gd | $^{141}$Tb | $^{142}$Dy | | | | | | | | | | | | | | |
| 77 | $^{138}$Pm | $^{139}$Sm | $^{140}$Eu | $^{141}$Gd | $^{142}$Tb | $^{143}$Dy | | | | | | | | | | | | | | |
| 78 | $^{139}$Pm | $^{140}$Sm | $^{141}$Eu | $^{142}$Gd | $^{143}$Tb | $^{144}$Dy | $^{145}$Ho | | | | | | | | | | | | | |
| 79 | $^{140}$Pm | $^{141}$Sm | $^{142}$Eu | $^{143}$Gd | $^{144}$Tb | $^{145}$Dy | $^{146}$Ho | | | | | | | | | | | | | |
| 80 | $^{141}$Pm | $^{142}$Sm | $^{143}$Eu | $^{144}$Gd | $^{145}$Tb | $^{146}$Dy | $^{147}$Ho | $^{148}$Er | | | | | | | | | | | | |
| 81 | $^{142}$Pm | $^{143}$Sm | $^{144}$Eu | $^{145}$Gd | $^{146}$Tb | $^{147}$Dy | $^{148}$Ho | $^{149}$Er | | | | | | | | | | | | |
| 82 | $^{143}$Pm | $^{144}$Sm | $^{145}$Eu | $^{146}$Gd | $^{147}$Tb | $^{148}$Dy | $^{149}$Ho | $^{150}$Er | $^{151}$Tm | | | | | | | | | | | |
| 83 | $^{144}$Pm | $^{145}$Sm | $^{146}$Eu | $^{147}$Gd | $^{148}$Tb | $^{149}$Dy | $^{150}$Ho | $^{151}$Er | $^{152}$Tm | $^{153}$Yb | | | | | | | | | | |
| 84 | $^{145}$Pm | $^{146}$Sm | $^{147}$Eu | $^{148}$Gd | $^{149}$Tb | $^{150}$Dy | $^{151}$Ho | $^{152}$Er | $^{153}$Tm | $^{154}$Yb | $^{155}$Lu | | | | | | | | | |
| 85 | $^{146}$Pm | $^{147}$Sm | $^{148}$Eu | $^{149}$Gd | $^{150}$Tb | $^{151}$Dy | $^{152}$Ho | $^{153}$Er | $^{154}$Tm | $^{155}$Yb | $^{156}$Lu | $^{157}$Hf | | | | | | | | |
| 86 | $^{147}$Pm | $^{148}$Sm | $^{149}$Eu | $^{150}$Gd | $^{151}$Tb | $^{152}$Dy | $^{153}$Ho | $^{154}$Er | $^{155}$Tm | $^{156}$Yb | $^{157}$Lu | $^{158}$Hf | $^{159}$Ta | | | | | | | |
| 87 | $^{148}$Pm | $^{149}$Sm | $^{150}$Eu | $^{151}$Gd | $^{152}$Tb | $^{153}$Dy | $^{154}$Ho | $^{155}$Er | $^{156}$Tm | $^{157}$Yb | $^{158}$Lu | $^{159}$Hf | $^{160}$Ta | | | | | | | |
| 88 | $^{149}$Pm | $^{150}$Sm | $^{151}$Eu | $^{152}$Gd | $^{153}$Tb | $^{154}$Dy | $^{155}$Ho | $^{156}$Er | $^{157}$Tm | $^{158}$Yb | $^{159}$Lu | $^{160}$Hf | $^{161}$Ta | $^{162}$W | | | | | | |
| 89 | $^{150}$Pm | $^{151}$Sm | $^{152}$Eu | $^{153}$Gd | $^{154}$Tb | $^{155}$Dy | $^{156}$Ho | $^{157}$Er | $^{158}$Tm | $^{159}$Yb | $^{160}$Lu | $^{161}$Hf | $^{162}$Ta | $^{163}$W | | | | | | |
| 90 | $^{151}$Pm | $^{152}$Sm | $^{153}$Eu | $^{154}$Gd | $^{155}$Tb | $^{156}$Dy | $^{157}$Ho | $^{158}$Er | $^{159}$Tm | $^{160}$Yb | $^{161}$Lu | $^{162}$Hf | $^{163}$Ta | $^{164}$W | $^{165}$Re | | | | | |
| 91 | $^{152}$Pm | $^{153}$Sm | $^{154}$Eu | $^{155}$Gd | $^{156}$Tb | $^{157}$Dy | $^{158}$Ho | $^{159}$Er | $^{160}$Tm | $^{161}$Yb | $^{162}$Lu | $^{163}$Hf | $^{164}$Ta | $^{165}$W | $^{166}$Re | | | | | |
| 92 | $^{153}$Pm | $^{154}$Sm | $^{155}$Eu | $^{156}$Gd | $^{157}$Tb | $^{158}$Dy | $^{159}$Ho | $^{160}$Er | $^{161}$Tm | $^{162}$Yb | $^{163}$Lu | $^{164}$Hf | $^{165}$Ta | $^{166}$W | $^{167}$Re | $^{168}$Os | | | | |
| 93 | $^{154}$Pm | $^{155}$Sm | $^{156}$Eu | $^{157}$Gd | $^{158}$Tb | $^{159}$Dy | $^{160}$Ho | $^{161}$Er | $^{162}$Tm | $^{163}$Yb | $^{164}$Lu | $^{165}$Hf | $^{166}$Ta | $^{167}$W | $^{168}$Re | $^{169}$Os | | | | |
| 94 | $^{155}$Pm | $^{156}$Sm | $^{157}$Eu | $^{158}$Gd | $^{159}$Tb | $^{160}$Dy | $^{161}$Ho | $^{162}$Er | $^{163}$Tm | $^{164}$Yb | $^{165}$Lu | $^{166}$Hf | $^{167}$Ta | $^{168}$W | $^{169}$Re | $^{170}$Os | $^{171}$Ir | | | |
| 95 | $^{156}$Pm | $^{157}$Sm | $^{158}$Eu | $^{159}$Gd | $^{160}$Tb | $^{161}$Dy | $^{162}$Ho | $^{163}$Er | $^{164}$Tm | $^{165}$Yb | $^{166}$Lu | $^{167}$Hf | $^{168}$Ta | $^{169}$W | $^{170}$Re | $^{171}$Os | $^{172}$Ir | $^{173}$Pt | | |
| 96 | $^{157}$Pm | $^{158}$Sm | $^{159}$Eu | $^{160}$Gd | $^{161}$Tb | $^{162}$Dy | $^{163}$Ho | $^{164}$Er | $^{165}$Tm | $^{166}$Yb | $^{167}$Lu | $^{168}$Hf | $^{169}$Ta | $^{170}$W | $^{171}$Re | $^{172}$Os | $^{173}$Ir | $^{174}$Pt | $^{175}$Au | |
| 97 | $^{158}$Pm | $^{159}$Sm | $^{160}$Eu | $^{161}$Gd | $^{162}$Tb | $^{163}$Dy | $^{164}$Ho | $^{165}$Er | $^{166}$Tm | $^{167}$Yb | $^{168}$Lu | $^{169}$Hf | $^{170}$Ta | $^{171}$W | $^{172}$Re | $^{173}$Os | $^{174}$Ir | $^{175}$Pt | $^{176}$Au | $^{177}$Hg |
| 98 | $^{159}$Pm | $^{160}$Sm | $^{161}$Eu | $^{162}$Gd | $^{163}$Tb | $^{164}$Dy | $^{165}$Ho | $^{166}$Er | $^{167}$Tm | $^{168}$Yb | $^{169}$Lu | $^{170}$Hf | $^{171}$Ta | $^{172}$W | $^{173}$Re | $^{174}$Os | $^{175}$Ir | $^{176}$Pt | $^{177}$Au | $^{178}$Hg |
| 99 | | $^{161}$Sm | $^{162}$Eu | $^{163}$Gd | $^{164}$Tb | $^{165}$Dy | $^{166}$Ho | $^{167}$Er | $^{168}$Tm | $^{169}$Yb | $^{170}$Lu | $^{171}$Hf | $^{172}$Ta | $^{173}$W | $^{174}$Re | $^{175}$Os | $^{176}$Ir | $^{177}$Pt | $^{178}$Au | $^{179}$Hg |
| 100 | | $^{162}$Sm | $^{163}$Eu | $^{164}$Gd | $^{165}$Tb | $^{166}$Dy | $^{167}$Ho | $^{168}$Er | $^{169}$Tm | $^{170}$Yb | $^{171}$Lu | $^{172}$Hf | $^{173}$Ta | $^{174}$W | $^{175}$Re | $^{176}$Os | $^{177}$Ir | $^{178}$Pt | $^{179}$Au | $^{180}$Hg |
| 101 | | | $^{164}$Eu | $^{165}$Gd | $^{166}$Tb | $^{167}$Dy | $^{168}$Ho | $^{169}$Er | $^{170}$Tm | $^{171}$Yb | $^{172}$Lu | $^{173}$Hf | $^{174}$Ta | $^{175}$W | $^{176}$Re | $^{177}$Os | $^{178}$Ir | $^{179}$Pt | $^{180}$Au | $^{181}$Hg |
| 102 | | | $^{165}$Eu | $^{166}$Gd | $^{167}$Tb | $^{168}$Dy | $^{169}$Ho | $^{170}$Er | $^{171}$Tm | $^{172}$Yb | $^{173}$Lu | $^{174}$Hf | $^{175}$Ta | $^{176}$W | $^{177}$Re | $^{178}$Os | $^{179}$Ir | $^{180}$Pt | $^{181}$Au | $^{182}$Hg |
| 103 | | | | $^{167}$Gd | $^{168}$Tb | $^{169}$Dy | $^{170}$Ho | $^{171}$Er | $^{172}$Tm | $^{173}$Yb | $^{174}$Lu | $^{175}$Hf | $^{176}$Ta | $^{177}$W | $^{178}$Re | $^{179}$Os | $^{180}$Ir | $^{181}$Pt | $^{182}$Au | $^{183}$Hg |
| 104 | | | | | $^{169}$Tb | $^{170}$Dy | $^{171}$Ho | $^{172}$Er | $^{173}$Tm | $^{174}$Yb | $^{175}$Lu | $^{176}$Hf | $^{177}$Ta | $^{178}$W | $^{179}$Re | $^{180}$Os | $^{181}$Ir | $^{182}$Pt | $^{183}$Au | $^{184}$Hg |
| 105 | | | | | | $^{171}$Dy | $^{172}$Ho | $^{173}$Er | $^{174}$Tm | $^{175}$Yb | $^{176}$Lu | $^{177}$Hf | $^{178}$Ta | $^{179}$W | $^{180}$Re | $^{181}$Os | $^{182}$Ir | $^{183}$Pt | $^{184}$Au | $^{185}$Hg |
| 106 | | | | | | $^{172}$Dy | $^{173}$Ho | $^{174}$Er | $^{175}$Tm | $^{176}$Yb | $^{177}$Lu | $^{178}$Hf | $^{179}$Ta | $^{180}$W | $^{181}$Re | $^{182}$Os | $^{183}$Ir | $^{184}$Pt | $^{185}$Au | $^{186}$Hg |
| 107 | | | | | | | $^{174}$Ho | $^{175}$Er | $^{176}$Tm | $^{177}$Yb | $^{178}$Lu | $^{179}$Hf | $^{180}$Ta | $^{181}$W | $^{182}$Re | $^{183}$Os | $^{184}$Ir | $^{185}$Pt | $^{186}$Au | $^{187}$Hg |
| 108 | | | | | | | $^{175}$Ho | $^{176}$Er | $^{177}$Tm | $^{178}$Yb | $^{179}$Lu | $^{180}$Hf | $^{181}$Ta | $^{182}$W | $^{183}$Re | $^{184}$Os | $^{185}$Ir | $^{186}$Pt | $^{187}$Au | $^{188}$Hg |
| 109 | | | | | | | | $^{177}$Er | $^{178}$Tm | $^{179}$Yb | $^{180}$Lu | $^{181}$Hf | $^{182}$Ta | $^{183}$W | $^{184}$Re | $^{185}$Os | $^{186}$Ir | $^{187}$Pt | $^{188}$Au | $^{189}$Hg |
| 110 | | | | | | | | | $^{179}$Tm | $^{180}$Yb | $^{181}$Lu | $^{182}$Hf | $^{183}$Ta | $^{184}$W | $^{185}$Re | $^{186}$Os | $^{187}$Ir | $^{188}$Pt | $^{189}$Au | $^{190}$Hg |
| 111 | | | | | | | | | | $^{181}$Yb | $^{182}$Lu | $^{183}$Hf | $^{184}$Ta | $^{185}$W | $^{186}$Re | $^{187}$Os | $^{188}$Ir | $^{189}$Pt | $^{190}$Au | $^{191}$Hg |
| 112 | | | | | | | | | | $^{182}$Yb | $^{183}$Lu | $^{184}$Hf | $^{185}$Ta | $^{186}$W | $^{187}$Re | $^{188}$Os | $^{189}$Ir | $^{190}$Pt | $^{191}$Au | $^{192}$Hg |
| 113 | | | | | | | | | | | $^{184}$Lu | $^{185}$Hf | $^{186}$Ta | $^{187}$W | $^{188}$Re | $^{189}$Os | $^{190}$Ir | $^{191}$Pt | $^{192}$Au | $^{193}$Hg |
| 114 | | | | | | | | | | | $^{185}$Lu | $^{186}$Hf | $^{187}$Ta | $^{188}$W | $^{189}$Re | $^{190}$Os | $^{191}$Ir | $^{192}$Pt | $^{193}$Au | $^{194}$Hg |
| 115 | | | | | | | | | | | | $^{187}$Hf | $^{188}$Ta | $^{189}$W | $^{190}$Re | $^{191}$Os | $^{192}$Ir | $^{193}$Pt | $^{194}$Au | $^{195}$Hg |
| 116 | | | | | | | | | | | | $^{188}$Hf | $^{189}$Ta | $^{190}$W | $^{191}$Re | $^{192}$Os | $^{193}$Ir | $^{194}$Pt | $^{195}$Au | $^{196}$Hg |
| 117 | | | | | | | | | | | | | $^{190}$Ta | $^{191}$W | $^{192}$Re | $^{193}$Os | $^{194}$Ir | $^{195}$Pt | $^{196}$Au | $^{197}$Hg |
| 118 | | | | | | | | | | | | | | $^{192}$W | $^{193}$Re | $^{194}$Os | $^{195}$Ir | $^{196}$Pt | $^{197}$Au | $^{198}$Hg |
| 119 | | | | | | | | | | | | | | | $^{194}$Re | $^{195}$Os | $^{196}$Ir | $^{197}$Pt | $^{198}$Au | $^{199}$Hg |
| 120 | | | | | | | | | | | | | | | | $^{196}$Os | $^{197}$Ir | $^{198}$Pt | $^{199}$Au | $^{200}$Hg |
| 121 | | | | | | | | | | | | | | | | $^{197}$Os | $^{198}$Ir | $^{199}$Pt | $^{200}$Au | $^{201}$Hg |
| 122 | | | | | | | | | | | | | | | | | $^{199}$Ir | $^{200}$Pt | $^{201}$Au | $^{202}$Hg |
| 123 | | | | | | | | | | | | | | | | | | $^{201}$Pt | $^{202}$Au | $^{203}$Hg |
| 124 | | | | | | | | | | | | | | | | | | $^{202}$Pt | $^{203}$Au | $^{204}$Hg |
| 125 | | | | | | | | | | | | | | | | | | $^{203}$Pt | $^{204}$Au | $^{205}$Hg |
| 126 | | | | | | | | | | | | | | | | | | $^{204}$Pt | $^{205}$Au | $^{206}$Hg |
| 127 | | | | | | | | | | | | | | | | | | | | $^{207}$Hg |
| 128 | | | | | | | | | | | | | | | | | | | | $^{208}$Hg |
| 129 | | | | | | | | | | | | | | | | | | | | $^{209}$Hg |
| 130 | | | | | | | | | | | | | | | | | | | | $^{210}$Hg |

### Da 81 a 100 protoni

| p | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 |
| | Tl | Pb | Bi | Po | At | Rn | Fr | Ra | Ac | Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm |
| n | | | | | | | | | | | | | | | | | | | | |
| 103 | $^{184}$Tl | $^{185}$Pb | | | | | | | | | | | | | | | | | | |
| 104 | $^{185}$Tl | $^{186}$Pb | | | | | | | | | | | | | | | | | | |
| 105 | $^{186}$Tl | $^{187}$Pb | | | | | | | | | | | | | | | | | | |
| 106 | $^{187}$Tl | $^{188}$Pb | $^{189}$Bi | | | | | | | | | | | | | | | | | |
| 107 | $^{188}$Tl | $^{189}$Pb | $^{190}$Bi | | | | | | | | | | | | | | | | | |
| 108 | $^{189}$Tl | $^{190}$Pb | $^{191}$Bi | | | | | | | | | | | | | | | | | |
| 109 | $^{190}$Tl | $^{191}$Pb | $^{192}$Bi | $^{193}$Po | $^{194}$At | | | | | | | | | | | | | | | |
| 110 | $^{191}$Tl | $^{192}$Pb | $^{193}$Bi | $^{194}$Po | $^{195}$At | | | | | | | | | | | | | | | |
| 111 | $^{192}$Tl | $^{193}$Pb | $^{194}$Bi | $^{195}$Po | $^{196}$At | | | | | | | | | | | | | | | |
| 112 | $^{193}$Tl | $^{194}$Pb | $^{195}$Bi | $^{196}$Po | $^{197}$At | | | | | | | | | | | | | | | |
| 113 | $^{194}$Tl | $^{195}$Pb | $^{196}$Bi | $^{197}$Po | $^{198}$At | | | | | | | | | | | | | | | |
| 114 | $^{195}$Tl | $^{196}$Pb | $^{197}$Bi | $^{198}$Po | $^{199}$At | $^{200}$Rn | | | | | | | | | | | | | | |
| 115 | $^{196}$Tl | $^{197}$Pb | $^{198}$Bi | $^{199}$Po | $^{200}$At | $^{201}$Rn | | | | | | | | | | | | | | |
| 116 | $^{197}$Tl | $^{198}$Pb | $^{199}$Bi | $^{200}$Po | $^{201}$At | $^{202}$Rn | $^{203}$Fr | | | | | | | | | | | | | |
| 117 | $^{198}$Tl | $^{199}$Pb | $^{200}$Bi | $^{201}$Po | $^{202}$At | $^{203}$Rn | $^{204}$Fr | | | | | | | | | | | | | |
| 118 | $^{199}$Tl | $^{200}$Pb | $^{201}$Bi | $^{202}$Po | $^{203}$At | $^{204}$Rn | $^{205}$Fr | $^{206}$Ra | | | | | | | | | | | | |
| 119 | $^{200}$Tl | $^{201}$Pb | $^{202}$Bi | $^{203}$Po | $^{204}$At | $^{205}$Rn | $^{206}$Fr | $^{207}$Ra | | | | | | | | | | | | |
| 120 | $^{201}$Tl | $^{202}$Pb | $^{203}$Bi | $^{204}$Po | $^{205}$At | $^{206}$Rn | $^{207}$Fr | $^{208}$Ra | $^{209}$Ac | | | | | | | | | | | |
| 121 | $^{202}$Tl | $^{203}$Pb | $^{204}$Bi | $^{205}$Po | $^{206}$At | $^{207}$Rn | $^{208}$Fr | $^{209}$Ra | $^{210}$Ac | | | | | | | | | | | |
| 122 | $^{203}$Tl | $^{204}$Pb | $^{205}$Bi | $^{206}$Po | $^{207}$At | $^{208}$Rn | $^{209}$Fr | $^{210}$Ra | $^{211}$Ac | | | | | | | | | | | |
| 123 | $^{204}$Tl | $^{205}$Pb | $^{206}$Bi | $^{207}$Po | $^{208}$At | $^{209}$Rn | $^{210}$Fr | $^{211}$Ra | $^{212}$Ac | $^{213}$Th | | | | | | | | | | |
| 124 | $^{205}$Tl | $^{206}$Pb | $^{207}$Bi | $^{208}$Po | $^{209}$At | $^{210}$Rn | $^{211}$Fr | $^{212}$Ra | $^{213}$Ac | $^{214}$Th | | | | | | | | | | |
| 125 | $^{206}$Tl | $^{207}$Pb | $^{208}$Bi | $^{209}$Po | $^{210}$At | $^{211}$Rn | $^{212}$Fr | $^{213}$Ra | $^{214}$Ac | $^{215}$Th | $^{216}$Pa | | | | | | | | | |
| 126 | $^{207}$Tl | $^{208}$Pb | $^{209}$Bi | $^{210}$Po | $^{211}$At | $^{212}$Rn | $^{213}$Fr | $^{214}$Ra | $^{215}$Ac | $^{216}$Th | $^{217}$Pa | | | | | | | | | |
| 127 | $^{208}$Tl | $^{209}$Pb | $^{210}$Bi | $^{211}$Po | $^{212}$At | $^{213}$Rn | $^{214}$Fr | $^{215}$Ra | $^{216}$Ac | $^{217}$Th | $^{218}$Pa | | | | | | | | | |
| 128 | $^{209}$Tl | $^{210}$Pb | $^{211}$Bi | $^{212}$Po | $^{213}$At | $^{214}$Rn | $^{215}$Fr | $^{216}$Ra | $^{217}$Ac | $^{218}$Th | $^{219}$Pa | | | | | | | | | |
| 129 | $^{210}$Tl | $^{211}$Pb | $^{212}$Bi | $^{213}$Po | $^{214}$At | $^{215}$Rn | $^{216}$Fr | $^{217}$Ra | $^{218}$Ac | $^{219}$Th | $^{220}$Pa | | | | | | | | | |
| 130 | $^{211}$Tl | $^{212}$Pb | $^{213}$Bi | $^{214}$Po | $^{215}$At | $^{216}$Rn | $^{217}$Fr | $^{218}$Ra | $^{219}$Ac | $^{220}$Th | $^{221}$Pa | | | | | | | | | |
| 131 | $^{212}$Tl | $^{213}$Pb | $^{214}$Bi | $^{215}$Po | $^{216}$At | $^{217}$Rn | $^{218}$Fr | $^{219}$Ra | $^{220}$Ac | $^{221}$Th | $^{222}$Pa | | | | | | | | | |
| 132 | | $^{214}$Pb | $^{215}$Bi | $^{216}$Po | $^{217}$At | $^{218}$Rn | $^{219}$Fr | $^{220}$Ra | $^{221}$Ac | $^{222}$Th | $^{223}$Pa | $^{224}$U | | | | | | | | |
| 133 | | $^{215}$Pb | $^{216}$Bi | $^{217}$Po | $^{218}$At | $^{219}$Rn | $^{220}$Fr | $^{221}$Ra | $^{222}$Ac | $^{223}$Th | $^{224}$Pa | $^{225}$U | | | | | | | | |
| 134 | | | $^{217}$Bi | $^{218}$Po | $^{219}$At | $^{220}$Rn | $^{221}$Fr | $^{222}$Ra | $^{223}$Ac | $^{224}$Th | $^{225}$Pa | $^{226}$U | $^{227}$Np | $^{228}$Pu | | | | | | |
| 135 | | | $^{218}$Bi | $^{219}$Po | $^{220}$At | $^{221}$Rn | $^{222}$Fr | $^{223}$Ra | $^{224}$Ac | $^{225}$Th | $^{226}$Pa | $^{227}$U | $^{228}$Np | $^{229}$Pu | $^{230}$Am | | | | | |
| 136 | | | | $^{220}$Po | $^{221}$At | $^{222}$Rn | $^{223}$Fr | $^{224}$Ra | $^{225}$Ac | $^{226}$Th | $^{227}$Pa | $^{228}$U | $^{229}$Np | $^{230}$Pu | $^{231}$Am | | | | | |
| 137 | | | | | $^{222}$At | $^{223}$Rn | $^{224}$Fr | $^{225}$Ra | $^{226}$Ac | $^{227}$Th | $^{228}$Pa | $^{229}$U | $^{230}$Np | $^{231}$Pu | $^{232}$Am | $^{233}$Cm | | | | |
| 138 | | | | | $^{223}$At | $^{224}$Rn | $^{225}$Fr | $^{226}$Ra | $^{227}$Ac | $^{228}$Th | $^{229}$Pa | $^{230}$U | $^{231}$Np | $^{232}$Pu | $^{233}$Am | $^{234}$Cm | $^{235}$Bk | | | |
| 139 | | | | | | $^{225}$Rn | $^{226}$Fr | $^{227}$Ra | $^{228}$Ac | $^{229}$Th | $^{230}$Pa | $^{231}$U | $^{232}$Np | $^{233}$Pu | $^{234}$Am | $^{235}$Cm | $^{235}$Bk | $^{237}$Cf | | |
| 140 | | | | | | $^{226}$Rn | $^{227}$Fr | $^{228}$Ra | $^{229}$Ac | $^{230}$Th | $^{231}$Pa | $^{232}$U | $^{233}$Np | $^{234}$Pu | $^{235}$Am | $^{236}$Cm | $^{235}$Bk | $^{238}$Cf | | |
| 141 | | | | | | $^{227}$Rn | $^{228}$Fr | $^{229}$Ra | $^{230}$Ac | $^{231}$Th | $^{232}$Pa | $^{233}$U | $^{234}$Np | $^{235}$Pu | $^{236}$Am | $^{237}$Cm | $^{238}$Bk | $^{239}$Cf | | |
| 142 | | | | | | $^{228}$Rn | $^{229}$Fr | $^{230}$Ra | $^{231}$Ac | $^{232}$Th | $^{233}$Pa | $^{234}$U | $^{235}$Np | $^{236}$Pu | $^{237}$Am | $^{238}$Cm | $^{239}$Bk | $^{240}$Cf | $^{241}$Es | $^{242}$Fm |
| 143 | | | | | | $^{229}$Rn | $^{230}$Fr | $^{231}$Ra | $^{232}$Ac | $^{233}$Th | $^{234}$Pa | $^{235}$U | $^{236}$Np | $^{237}$Pu | $^{238}$Am | $^{239}$Cm | $^{240}$Bk | $^{241}$Cf | $^{242}$Es | $^{243}$Fm |
| 144 | | | | | | | $^{231}$Fr | $^{232}$Ra | $^{233}$Ac | $^{234}$Th | $^{235}$Pa | $^{236}$U | $^{237}$Np | $^{238}$Pu | $^{239}$Am | $^{240}$Cm | $^{241}$Bk | $^{242}$Cf | $^{243}$Es | $^{244}$Fm |
| 145 | | | | | | | | $^{233}$Ra | $^{234}$Ac | $^{235}$Th | $^{236}$Pa | $^{237}$U | $^{238}$Np | $^{239}$Pu | $^{240}$Am | $^{241}$Cm | $^{242}$Bk | $^{243}$Cf | $^{244}$Es | $^{245}$Fm |
| 146 | | | | | | | | $^{234}$Ra | $^{235}$Ac | $^{236}$Th | $^{237}$Pa | $^{238}$U | $^{239}$Np | $^{240}$Pu | $^{241}$Am | $^{242}$Cm | $^{243}$Bk | $^{244}$Cf | $^{245}$Es | $^{246}$Fm |
| 147 | | | | | | | | | $^{236}$Ac | $^{237}$Th | $^{238}$Pa | $^{239}$U | $^{240}$Np | $^{241}$Pu | $^{242}$Am | $^{243}$Cm | $^{244}$Bk | $^{245}$Cf | $^{246}$Es | $^{247}$Fm |
| 148 | | | | | | | | | | $^{238}$Th | $^{239}$Pa | $^{240}$U | $^{241}$Np | $^{242}$Pu | $^{243}$Am | $^{244}$Cm | $^{245}$Bk | $^{246}$Cf | $^{247}$Es | $^{248}$Fm |
| 149 | | | | | | | | | | $^{239}$Th | $^{240}$Pa | $^{241}$U | $^{242}$Np | $^{243}$Pu | $^{244}$Am | $^{245}$Cm | $^{246}$Bk | $^{247}$Cf | $^{248}$Es | $^{249}$Fm |
| 150 | | | | | | | | | | | $^{241}$Pa | $^{242}$U | $^{243}$Np | $^{244}$Pu | $^{245}$Am | $^{246}$Cm | $^{247}$Bk | $^{248}$Cf | $^{249}$Es | $^{250}$Fm |
| 151 | | | | | | | | | | | | $^{243}$U | $^{244}$Np | $^{245}$Pu | $^{246}$Am | $^{247}$Cm | $^{248}$Bk | $^{249}$Cf | $^{250}$Es | $^{251}$Fm |
| 152 | | | | | | | | | | | | | | $^{246}$Pu | $^{247}$Am | $^{248}$Cm | $^{249}$Bk | $^{250}$Cf | $^{251}$Es | $^{252}$Fm |
| 153 | | | | | | | | | | | | | | $^{247}$Pu | $^{248}$Am | $^{249}$Cm | $^{250}$Bk | $^{251}$Cf | $^{252}$Es | $^{253}$Fm |
| 154 | | | | | | | | | | | | | | | $^{249}$Am | $^{250}$Cm | $^{251}$Bk | $^{252}$Cf | $^{253}$Es | $^{254}$Fm |
| 155 | | | | | | | | | | | | | | | | $^{251}$Cm | $^{252}$Bk | $^{253}$Cf | $^{254}$Es | $^{255}$Fm |
| 156 | | | | | | | | | | | | | | | | $^{252}$Cm | $^{253}$Bk | $^{254}$Cf | $^{255}$Es | $^{256}$Fm |
| 157 | | | | | | | | | | | | | | | | | $^{254}$Bk | $^{255}$Cf | $^{256}$Es | $^{257}$Fm |
| 158 | | | | | | | | | | | | | | | | | | $^{256}$Cf | $^{257}$Es | $^{258}$Fm |
| 159 | | | | | | | | | | | | | | | | | | | $^{258}$Es | $^{259}$Fm |
| 160 | | | | | | | | | | | | | | | | | | | | $^{260}$Fm |

### Più di 101 protoni

| p | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 |
| | Md | No | Lr | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og |
| n | | | | | | | | | | | | | | | | | | |
| 147 | $^{248}$Md | | | | | | | | | | | | | | | | | |
| 148 | $^{249}$Md | $^{250}$No | | | | | | | | | | | | | | | | |
| 149 | $^{250}$Md | $^{251}$No | $^{252}$Lr | $^{253}$Rf | | | | | | | | | | | | | | |
| 150 | $^{251}$Md | $^{252}$No | $^{253}$Lr | $^{254}$Rf | $^{255}$Db | | | | | | | | | | | | | |
| 151 | $^{252}$Md | $^{253}$No | $^{254}$Lr | $^{255}$Rf | $^{256}$Db | | | | | | | | | | | | | |
| 152 | $^{253}$Md | $^{254}$No | $^{255}$Lr | $^{256}$Rf | $^{257}$Db | $^{258}$Sg | | | | | | | | | | | | |
| 153 | $^{254}$Md | $^{255}$No | $^{256}$Lr | $^{257}$Rf | $^{258}$Db | $^{259}$Sg | $^{260}$Bh | | | | | | | | | | | |
| 154 | $^{255}$Md | $^{256}$No | $^{257}$Lr | $^{258}$Rf | $^{259}$Db | $^{260}$Sg | $^{261}$Bh | | | | | | | | | | | |
| 155 | $^{256}$Md | $^{257}$No | $^{258}$Lr | $^{259}$Rf | $^{260}$Db | $^{261}$Sg | $^{262}$Bh | $^{263}$Hs | | | | | | | | | | |
| 156 | $^{257}$Md | $^{258}$No | $^{259}$Lr | $^{260}$Rf | $^{261}$Db | $^{262}$Sg | $^{263}$Bh | $^{264}$Hs | $^{265}$Mt | | | | | | | | | |
| 157 | $^{258}$Md | $^{259}$No | $^{260}$Lr | $^{261}$Rf | $^{262}$Db | $^{263}$Sg | $^{264}$Bh | $^{265}$Hs | $^{266}$Mt | $^{267}$Ds | | | | | | | | |
| 158 | $^{259}$Md | $^{260}$No | $^{261}$Lr | $^{262}$Rf | $^{263}$Db | $^{264}$Sg | $^{265}$Bh | $^{266}$Hs | $^{267}$Mt | $^{268}$Ds | | | | | | | | |
| 159 | $^{260}$Md | $^{261}$No | $^{262}$Lr | $^{263}$Rf | $^{264}$Db | $^{265}$Sg | $^{266}$Bh | $^{267}$Hs | $^{268}$Mt | $^{269}$Ds | | | | | | | | |
| 160 | $^{261}$Md | $^{262}$No | $^{263}$Lr | $^{264}$Rf | $^{265}$Db | $^{266}$Sg | $^{267}$Bh | $^{268}$Hs | $^{269}$Mt | $^{270}$Ds | | | | | | | | |
| 161 | $^{262}$Md | $^{263}$No | $^{264}$Lr | $^{265}$Rf | $^{266}$Db | $^{267}$Sg | $^{268}$Bh | $^{269}$Hs | $^{270}$Mt | $^{271}$Ds | $^{272}$Rg | | | | | | | |
| 162 | | $^{264}$No | $^{265}$Lr | $^{266}$Rf | $^{267}$Db | $^{268}$Sg | $^{269}$Bh | $^{270}$Hs | $^{271}$Mt | $^{272}$Ds | $^{273}$Rg | | | | | | | |
| 163 | | | $^{266}$Lr | $^{267}$Rf | $^{268}$Db | $^{269}$Sg | $^{270}$Bh | $^{271}$Hs | $^{272}$Mt | $^{273}$Ds | $^{274}$Rg | | | | | | | |
| 164 | | | | $^{268}$Rf | $^{269}$Db | $^{270}$Sg | $^{271}$Bh | $^{272}$Hs | $^{273}$Mt | $^{274}$Ds | $^{275}$Rg | | | | | | | |
| 165 | | | | | $^{270}$Db | $^{271}$Sg | $^{272}$Bh | $^{273}$Hs | $^{274}$Mt | $^{275}$Ds | $^{276}$Rg | $^{277}$Cn | | | | | | |
| 166 | | | | | | $^{272}$Sg | $^{273}$Bh | $^{274}$Hs | $^{275}$Mt | $^{276}$Ds | $^{277}$Rg | $^{278}$Cn | | | | | | |
| 167 | | | | | | $^{273}$Sg | $^{274}$Bh | $^{275}$Hs | $^{276}$Mt | $^{277}$Ds | $^{278}$Rg | $^{279}$Cn | | | | | | |
| 168 | | | | | | | $^{275}$Bh | $^{276}$Hs | $^{277}$Mt | $^{278}$Ds | $^{279}$Rg | $^{280}$Cn | | | | | | |
| 169 | | | | | | | | $^{277}$Hs | $^{278}$Mt | $^{279}$Ds | $^{280}$Rg | $^{281}$Cn | $^{282}$Nh | | | | | |
| 170 | | | | | | | | | $^{279}$Mt | $^{280}$Ds | $^{281}$Rg | $^{282}$Cn | $^{283}$Nh | | | | | |
| 171 | | | | | | | | | | $^{281}$Ds | $^{282}$Rg | $^{283}$Cn | $^{284}$Nh | $^{285}$Fl | | | | |
| 172 | | | | | | | | | | $^{282}$Ds | $^{283}$Rg | $^{284}$Cn | $^{285}$Nh | $^{286}$Fl | $^{287}$Mc | | | |
| 173 | | | | | | | | | | | | $^{285}$Cn | $^{286}$Nh | $^{287}$Fl | $^{288}$Mc | $^{289}$Lv | | |
| 174 | | | | | | | | | | | | $^{286}$Cn | $^{287}$Nh | $^{288}$Fl | $^{289}$Mc | $^{290}$Lv | $^{291}$Ts | |
| 175 | | | | | | | | | | | | | | $^{289}$Fl | $^{290}$Mc | $^{291}$Lv | $^{292}$Ts | |
| 176 | | | | | | | | | | | | | | | $^{291}$Mc | $^{292}$Lv | $^{293}$Ts | $^{294}$Og |
| 177 | | | | | | | | | | | | | | | | $^{293}$Lv | $^{294}$Ts | |

## Lettura della tabella e osservazioni

* Isotopi: sono nuclidi con lo stesso numero di protoni e che differiscono per il numero di neutroni; vale a dire che essi hanno lo stesso numero atomico e sono quindi lo stesso elemento chimico. Gli isotopi sono elencati verticalmente, ad esempio, il carbonio-12, il carbonio-13 e il carbonio-14.
* Isotoni: sono nuclidi che hanno lo stesso numero di neutroni e che differiscono per il numero di protoni, e quindi hanno diverso numero di massa. Gli isotoni sono elencati orizzontalmente, ad esempio, il carbonio-14, l'azoto-15 e l'ossigeno-16.
* Isobari: sono nuclidi che hanno lo stesso numero di nucleoni, cioè lo stesso numero di massa, ma un diverso numero di protoni e di neutroni. Gli isobari sono elencati diagonalmente, dall'angolo in basso a sinistra a quello in alto a destra, ad esempio, il carbonio-14, l'azoto-14 e l'ossigeno-14.
* Isodiaferi: sono nuclidi che hanno la stessa differenza tra neutroni e protoni (N-Z). Come gli isobari, anche gli isodiaferi sono elencati diagonalmente ma ad angolo retto rispetto agli isobari, quindi dall'angolo in alto a sinistra a quello in basso a destra, ad esempio il boro-10, il carbonio-12 e l'azoto-14 dove N-Z=0 o il boro-12, il carbonio-14 e l'azoto-16 dove N-Z=2.
* Oltre la linea di stabilità neutronica, lungo la parte bassa e sinistra della tabella, i nuclidi decadono per emissione neutronica.
* Oltre la linea di stabilità protonica, lungo la parte alta e destra della tabella, i nuclidi decadono per emissione protonica. Le linee di stabilità sono comunque state stabilite solo per alcuni elementi.
* L'isola di stabilità è un'ipotetica regione della tabella di nuclidi che contiene isotopi di elementi transuranici molto più stabili rispetto agli altri.
* Osservando la tavola si evince che non esistono atomi stabili aventi numero atomico maggiore di 20 che hanno nel loro nucleo un egual numero di protoni e neutroni. Nuclidi con un numero atomico più grande necessitano infatti un eccesso di neutroni per essere stabili.
* Gli unici atomi stabili aventi un numero dispari di protoni e neutroni sono il deuterio (idrogeno-2), il litio-6, il boro-10, l'azoto-14 e il tantalio-180m. Ciò è dovuto al fatto che in genere un atomo di questo genere ha una massa-energia più alta rispetto ai suoi vicini sulla stessa linea di isobari, quindi risulta instabile e tende a decadere attraverso un decadimento beta.
* Non esistono atomi stabili aventi numero di massa 5 o 8. C'è almeno un atomo stabile avente ogni altro numero di massa fino a 208 ad eccezione di 147 e 151 (il bismuto-209 è stato scoperto essere radioattivo nel 2003, sebbene con un'emivita di 1.9×10$^{19}$ anni).
* Con la possibile eccezione della coppia tellurio-123 e antimonio-123, i numeri di massa dispari non sono mai rappresentati dai più di un atomo stabile. Ciò è dovuto al fatto che l'equivalenza massa-energia è una funzione convessa del numero atomico, di conseguenza tutti i nuclidi su una linea di isobari dispari tranne una hanno un vicino a più bassa energia in cui decadono attraverso un decadimento beta.
* Non esistono atomi stabili aventi numero atomico maggiore di 82. Gli atomi aventi da 1 a 82 protoni hanno tutti almeno un isotopo stabile ad eccezione del tecnezio (Z=43) e del promezio (Z=61).