1A 2A 3A 4A 5A 6A 7A 8A ----- ----- 1 | H | |He | |---+---- --------------------+---| 2 |Li |Be | | B | C | N | O | F |Ne | |---+---| |---+---+---+---+---+---| 3 |Na |Mg |3B 4B 5B 6B 7B | 8B |1B 2B |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 |LAN|Hf |Ta | W |Re |Os |Ir |Pt |Au |Hg |Tl |Pb |Bi |Po |At |Rn | |---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---| 7 |Fr |Ra |ACT|Rf |Db |Sg |Bh |Hs |Mt |Ds |Rg |Cn |Uut|Fl |Uup|Lv |Uus|Uuo| ------------------------------------------------------------------------- ------------------------------------------------------------- Lanthanide |La |Ce |Pr |Nd |Pm |Sm |Eu |Gd |Tb |Dy |Ho |Er |Tm |Yb |Lu | |---+---+---+---+---+---+---+---+---+---+---+---+---+---+---| Actinide |Ac |Th |Pa | U |Np |Pu |Am |Cm |Bk |Cf |Es |Fm |Md |No |Lr | -------------------------------------------------------------