Ia | - | 0,7 | 0,8 | 0,9 | 1 | 1,5 | 2 | 2,5 | 3 | 3,5 | 4 | VIIIa | ||||||
1 | H | IIa | Valeurs d'électronégativité arrondies au plus proche (tendance) | IIIa | IVa | Va | VIa | VIIa |
He |
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2 | Li | Be | B | C | N | O | F | Ne | ||||||||||
3 | Na | Mg | IIIb | IVb | Vb | VIb | VIIIb | VIIIb | Ib | IIb | Al | Si | P | S | Cl | Ar | ||
4 | K | Ca | Sc | Ti | V | Cr | Mn | Fe | Co | Ni | Cu | Zn | Ga | Ge | As | Se | Br | Kr |
5 | Rb | Sr | Y | Zr | Nb | Mo | Tc | Ru | Rh | Pd | Ag | Cd | In | Sn | Sb | Te | I | Xe |
6 | Cs | Ba | La | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg | Tl | Pb | Bi | Po | At | Rn |
7 | Fr | Ra | Ac | |||||||||||||||
6 | Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | ||||
7 | Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr | ||||