Rf
Rutherfordium
Db
Dubnium
Sg
Seaborgium
Bh
Bohrium
Hs
Hassium
Mt
meitnerium
Ds
Darmstadtium
Rg
Roentgenium
Cn
Copernicium
Nh
Nihonium
Fl
Flerovium
Mc
Moscovium
Lv
Livermorium
Ts
Tennessine
Og
Oganesson
La
Lanthanum
Ce
Cerium
Pr
Praseodymium
Nd
Neodymium
Pm
Promethium
Sm
Samarium
Eu
Europium
Gd
Gadolinium
Tb
Terbium