ตารางธาตุ (การจัดเรียงอิเล็กตรอน)

{| align="center" border="0" cellpadding=0 cellspacing=1 style="text-align:center"
|+ การจัดเรียงอิเล็กตรอนของแก๊สมีสกุลที่ภาวะพลังงานต่ำสุด (ground state)
|-
| style="background:#f0f0f0;width:3%;vertical-align:bottom" | 1s:
| style="background:#a0ffa0;width:3%" | 1H1
| colspan="30" |
| style="background:#c0ffff;width:3%" | 2He2
|-
| style="background:#f0f0f0;width:3%;vertical-align:bottom" | &#91;He&#93;+2s:2p:
| style="background:#ff6666;width:3%" | 3Li1-
| style="background:#ffdead;width:3%" | 4Be2-
| colspan="24" |
| style="background:#cccc99;width:3%" | 5B21
| style="background:#a0ffa0;width:3%" | 6C22
| style="background:#a0ffa0;width:3%" | 7N23
| style="background:#a0ffa0;width:3%" | 8O24
| style="background:#ffff99;width:3%" | 9F25
| style="background:#c0ffff;width:3%" | 10Ne26
|-
| style="background:#f0f0f0;width:3%;vertical-align:bottom" | &#91;Ne&#93;+3s:3p:
| style="background:#ff6666;width:3%" | 11Na1-
| style="background:#ffdead;width:3%" | 12Mg2-
| colspan="24" |
| style="background:#cccccc;width:3%" | 13Al21
| style="background:#cccc99;width:3%" | 14Si22
| style="background:#a0ffa0;width:3%" | 15P23
| style="background:#a0ffa0;width:3%" | 16S24
| style="background:#ffff99;width:3%" | 17Cl25
| style="background:#c0ffff;width:3%" | 18Ar26
|-
| style="background:#f0f0f0;width:3%;vertical-align:bottom" | &#91;Ar&#93;+3d:4s:4p:
| style="background:#ff6666;width:3%" | 19K-1-
| style="background:#ffdead;width:3%" | 20Ca-2-
| colspan="14" |
| style="background:#ffc0c0;width:3%" | 21Sc12-
| style="background:#ffc0c0;width:3%" | 22Ti22-
| style="background:#ffc0c0;width:3%" | 23V32-
| style="background:#ffc0c0;width:3%" | 24Cr51-
| style="background:#ffc0c0;width:3%" | 25Mn52-
| style="background:#ffc0c0;width:3%" | 26Fe62-
| style="background:#ffc0c0;width:3%" | 27Co72-
| style="background:#ffc0c0;width:3%" | 28Ni82-
| style="background:#ffc0c0;width:3%" | 29Cu101-
| style="background:#ffc0c0;width:3%" | 30Zn102-
| style="background:#cccccc;width:3%" | 31Ga1021
| style="background:#cccc99;width:3%" | 32Ge1022
| style="background:#cccc99;width:3%" | 33As1023
| style="background:#a0ffa0;width:3%" | 34Se1024
| style="background:#ffff99;width:3%" | 35Br1025
| style="background:#c0ffff;width:3%" | 36Kr1026
|-
| style="background:#f0f0f0;width:3%;vertical-align:bottom" | &#91;Kr&#93;+4d:5s:5p:
| style="background:#ff6666;width:3%" | 37Rb-1-
| style="background:#ffdead;width:3%" | 38Sr-2-
| colspan="14" |
| style="background:#ffc0c0;width:3%" | 39Y12-
| style="background:#ffc0c0;width:3%" | 40Zr22-
| style="background:#ffc0c0;width:3%" | 41Nb41-
| style="background:#ffc0c0;width:3%" | 42Mo51-
| style="background:#ffc0c0;width:3%" | 43Tc52-
| style="background:#ffc0c0;width:3%" | 44Ru71-
| style="background:#ffc0c0;width:3%" | 45Rh81-
| style="background:#ffc0c0;width:3%" | 46Pd10--
| style="background:#ffc0c0;width:3%" | 47Ag101-
| style="background:#ffc0c0;width:3%" | 48Cd102-
| style="background:#cccccc;width:3%" | 49In1021
| style="background:#cccccc;width:3%" | 50Sn1022
| style="background:#cccc99;width:3%" | 51Sb1023
| style="background:#cccc99;width:3%" | 52Te1024
| style="background:#ffff99;width:3%" | 53I1025
| style="background:#c0ffff;width:3%" | 54Xe1026
|-
| style="background:#f0f0f0;width:3%;vertical-align:bottom" | &#91;Xe&#93;+4f:5d:6s:6p:
| style="background:#ff6666;width:3%" | 55Cs--1-
| style="background:#ffdead;width:3%" | 56Ba--2-
| style="background:#ffbfff;width:3%" | 57La-12-
| style="background:#ffbfff;width:3%" | 58Ce112-
| style="background:#ffbfff;width:3%" | 59Pr3-2-
| style="background:#ffbfff;width:3%" | 60Nd4-2-
| style="background:#ffbfff;width:3%" | 61Pm5-2-
| style="background:#ffbfff;width:3%" | 62Sm6-2-
| style="background:#ffbfff;width:3%" | 63Eu7-2-
| style="background:#ffbfff;width:3%" | 64Gd712-
| style="background:#ffbfff;width:3%" | 65Tb9-2-
| style="background:#ffbfff;width:3%" | 66Dy10-2-
| style="background:#ffbfff;width:3%" | 67Ho11-2-
| style="background:#ffbfff;width:3%" | 68Er12-2-
| style="background:#ffbfff;width:3%" | 69Tm13-2-
| style="background:#ffbfff;width:3%" | 70Yb14-2-
| style="background:#ffbfff;width:3%" | 71Lu1412-
| style="background:#ffc0c0;width:3%" | 72Hf1422-
| style="background:#ffc0c0;width:3%" | 73Ta1432-
| style="background:#ffc0c0;width:3%" | 74W1442-
| style="background:#ffc0c0;width:3%" | 75Re1452-
| style="background:#ffc0c0;width:3%" | 76Os1462-
| style="background:#ffc0c0;width:3%" | 77Ir1472-
| style="background:#ffc0c0;width:3%" | 78Pt1491-
| style="background:#ffc0c0;width:3%" | 79Au14101-
| style="background:#ffc0c0;width:3%" | 80Hg14102-
| style="background:#cccccc;width:3%" | 81Tl141021
| style="background:#cccccc;width:3%" | 82Pb141022
| style="background:#cccccc;width:3%" | 83Bi141023
| style="background:#cccc99;width:3%" | 84Po141024
| style="background:#ffff99;width:3%" | 85At141025
| style="background:#c0ffff;width:3%" | 86Rn141026
|-
| style="background:#f0f0f0;width:3%;vertical-align:bottom" | &#91;Rn&#93;+5f:6d:7s:7p:
| style="background:#ff6666;width:3%" | 87Fr--1-
| style="background:#ffdead;width:3%" | 88Ra--2-
| style="background:#ff99cc;width:3%" | 89Ac-12-
| style="background:#ff99cc;width:3%" | 90Th-22-
| style="background:#ff99cc;width:3%" | 91Pa212-
| style="background:#ff99cc;width:3%" | 92U312-
| style="background:#ff99cc;width:3%" | 93Np412-
| style="background:#ff99cc;width:3%" | 94Pu6-2-
| style="background:#ff99cc;width:3%" | 95Am7-2-
| style="background:#ff99cc;width:3%" | 96Cm712-
| style="background:#ff99cc;width:3%" | 97Bk9-2-
| style="background:#ff99cc;width:3%" | 98Cf10-2-
| style="background:#ff99cc;width:3%" | 99Es11-2-
| style="background:#ff99cc;width:3%" | 100Fm12-2-
| style="background:#ff99cc;width:3%" | 101Md13-2-
| style="background:#ff99cc;width:3%" | 102No14-2-
| style="background:#ff99cc;width:3%" | 103Lr14-21
| style="background:#ffc0c0;width:3%" | 104Rf1422-
| style="background:#ffc0c0;width:3%" | 105Db1432-
| style="background:#ffc0c0;width:3%" | 106Sg1442-
| style="background:#ffc0c0;width:3%" | 107Bh1452-
| style="background:#ffc0c0;width:3%" | 108Hs1462-
| style="background:#f0f0f0;width:3%" | 109Mt1472-
| style="background:#f0f0f0;width:3%" | 110Ds1482-
| style="background:#f0f0f0;width:3%" | 111Rg1492-
| style="background:#ffc0c0;width:3%" | 112Cn14102-
| style="background:#f0f0f0;width:3%" | 113Nh141021
| style="background:#f0f0f0;width:3%" | 114Fl141024
| style="background:#f0f0f0;width:3%" | 115Mc141023
| style="background:#f0f0f0;width:3%" | 116Lv141024
| style="background:#f0f0f0;width:3%" | 117Ts141025
| style="background:#f0f0f0;width:3%" | 118Og141026
|}
: He, 2, ฮีเลียม : 1s2
: Ne, 10, นีออน : 1s2 2s2 2p6
: Ar, 18, อาร์กอน : 1s2 2s2 2p6 3s2 3p6
: Kr, 36, คริปทอน : 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6
: Xe, 54, ซีนอน : 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6
: Rn, 86, เรดอน : 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2 6p6
ตารางธาตุ