Periyodik tablo
Genel bakış

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| Grup | 1 | 2 |   | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
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|  | Hidrojen & alkali metaller | Toprak alkali metaller |  |  |  |  |  |  |  |  |  |  |  | Bor grubu | Karbon grubu | Azot grubu | Kalkojenler | Halojenler | Soy gazlar |
| Periyot  1 | Hidro­jen1H​1,008 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Hel­yum2He​4,0026 |
| 2 | Lit­yum3Li​6,94 | Beril­yum4Be​9,0122 |  |  |  |  |  |  |  |  |  |  |  | Bor5B​10,81 | Karbon6C​12,011 | Azot7N​14,007 | Oksi­jen8O​15,999 | Flor9F​18,998 | Neon10Ne​20,180 |
| 3 | Sodyum11Na​22,990 | Magnez­yum12Mg​24,305 |  |  |  |  |  |  |  |  |  |  |  | Alümin­yum13Al​26,982 | Silis­yum14Si​28,085 | Fosfor15P​30,974 | Kükürt16S​32,06 | Klor17Cl​35,45 | Argon18Ar​39,95 |
| 4 | Potas­yum19K​39,098 | Kalsi­yum20Ca​40,078 |  | Skan­diyum21Sc​44,956 | Titan­yum22Ti​47,867 | Vanad­yum23V​50,942 | Krom24Cr​51,996 | Mangan25Mn​54,938 | Demir26Fe​55,845 | Kobalt27Co​58,933 | Nikel28Ni​58,693 | Bakır29Cu​63,546 | Çinko30Zn​65,38 | Galyum31Ga​69,723 | German­yum32Ge​72,630 | Arsenik33As​74,922 | Selen­yum34Se​78,971 | Brom35Br​79,904 | Krip­ton36Kr​83,798 |
| 5 | Rubid­yum37Rb​85,468 | Stron­siyum38Sr​87,62 |  | İtriyum39Y​88,906 | Zirkon­yum40Zr​91,224 | Niyob­yum41Nb​92,906 | Molib­den42Mo​95,95 | Teknes­yum43Tc​[97] | Ruten­yum44Ru​101,07 | Rod­yum45Rh​102,91 | Palad­yum46Pd​106,42 | Gümüş47Ag​107,87 | Kadmi­yum48Cd​112,41 | İndiyum49In​114,82 | Kalay50Sn​118,71 | Anti­mon51Sb​121,76 | Tellür52Te​127,60 | İyot53I​126,90 | Ksenon54Xe​131,29 |
| 6 | Sezyum55Cs​132,91 | Baryum56Ba​137,33 |  | Lutes­yum71Lu​174,97 | Hafni­yum72Hf​178,49 | Tantal73Ta​180,95 | Tungs­ten74W​183,84 | Ren­yum75Re​186,21 | Osmi­yum76Os​190,23 | İridyum77Ir​192,22 | Platin78Pt​195,08 | Altın79Au​196,97 | Civa80Hg​200,59 | Talyum81Tl​204,38 | Kurşun82Pb​207,2 | Bizmut83Bi​208,98 | Polon­yum84Po​[209] | Asta­tin85At​[210] | Radon86Rn​[222] |
| 7 | Fran­siyum87Fr​[223] | Radyum88Ra​[226] |  | Lavren­siyum103Lr​[266] | Ruther­fordiyum104Rf​[267] | Dub­niyum105Db​[268] | Seabor­giyum106Sg​[269] | Bohr­iyum107Bh​[270] | Hassi­yum108Hs​[269] | Meitner­iyum109Mt​[278] | Darmstadt­iyum110Ds​[281] | Rönt­genyum111Rg​[282] | Koper­nikyum112Cn​[285] | Nihoni­yum113Nh​[286] | Flero­viyum114Fl​[289] | Mosko­viyum115Mc​[290] | Liver­moriyum116Lv​[293] | Tenne­sin117Ts​[294] | Oga­nesson118Og​[294] |

|  |  |  |  | Lantan57La​138,91 | Seryum58Ce​140,12 | Prase­odim59Pr​140,91 | Neo­dymium60Nd​144,24 | Promet­yum61Pm​[145] | Samar­yum62Sm​150,36 | Evro­piyum63Eu​151,96 | Gado­linyum64Gd​157,25 | Terbi­yum65Tb​158,93 | Disproz­yum66Dy​162,50 | Holmi­yum67Ho​164,93 | Erbiyum68Er​167,26 | Tulyum69Tm​168,93 | İter­biyum70Yb​173,05 |  |   |
|  |  |  |  | Aktin­yum89Ac​[227] | Toryum90Th​232,04 | Protak­tinyum91Pa​231,04 | Uran­yum92U​238,03 | Neptün­yum93Np​[237] | Plüton­yum94Pu​[244] | Amerik­yum95Am​[243] | Küriyum96Cm​[247] | Berkel­yum97Bk​[247] | Kalifor­niyum98Cf​[251] | Aynştayn­yum99Es​[252] | Fermi­yum100Fm​[257] | Mende­levyum101Md​[258] | Nobel­yum102No​[259] |  |  |
İlksel  Bozunma sonucu  Yapay Kenarlar, elementin doğal oluşumunu gösterir
Ca: 40,078 - Resmî kısa ve yuvarlanmış değer (kesinsizlik yok)
Po: [209] - en kararlı izotopunun kütle numarası
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