18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 +
He H 01
Ne F O N C B Be Li 02
Ar Cl S P Si Al Mg Na 03
Kr Br Se As Ge Ga Zn Cu Ni Co Fe Mn Cr V Ti Sc Ca K 04
Xe I Te Sb Sn In Cd Ag Pd Rh Ru Tc Mo Nb Zr Y Sr Rb 05
Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn 06
Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn Rn 07
Rn