| 1A | 8A | ||||||||||||||||
| H | 2A | Maximum Valence | 3A | 4A | 5A | 6A | 7A | He | |||||||||
| Li | Be |
|
B | C | N | O | F | Ne | |||||||||
| Na | Mg | 3B | 4B | 5B | 6B | 7B | _____8B_____ | 1B | 2B | Al | Si | P | S | Cl | Ar | ||
| K | Ca | Sc | Ti | V | Cr | Mn | Fe | Co | Ni | Cu | Zn | Ga | Ge | As | Se | Br | Kr |
| Rb | Sr | Y | Zr | Nb | Mo | Tc | Ru | Rh | Pd | Ag | Cd | In | Sn | Sb | Te | I | Xe |
| Cs | Ba | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg | Tl | Pb | Bi | Po | At | Rn | |
| Fr | Ra | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Uut | Fl | |||||
| Lanthanides | La | Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | ||
| Actinides | Ac | Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr | ||