H He
Li Be B C N O F Ne
Na Mg 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 La 1 Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac 2 Rf Db Sg Bh Hs Mt
1: Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
2: Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr