imparator

Fr:Francum
Ra:Radium
Rf:Rutherfordium
Dbubnium
Sg:Seaborgium
Bh:Bohrium
Hs:Hassium
Mt:Meitnerium

Lantanitis
La:Lantanum
Ce:Cerium
Pr:Praseodymium
Nd:Neodymium
Pm:Promethium
Sm:Samarium
Eu:Europium
Gd:Gadolinium
Tb:Terbium
Dyysprosium
Ho:Holmium
Er:Erbium
Tm:Thullium
Yb:Ytterbium
Lu:Lutetium

Actinitis
Th:Thorium
Pa:Protactinium
U:Uranium
Np:Neptunium
Pu:Plutonium
Am:Americium
Cm:Curium
Bk:Berkelium
Cf:Californium
Es:Einsteinium
Fm:Fermium
Md:Mendelevium
No:Nobelium
Lr:Lawrencium