Promethium ek chemical element hae, jiske Chemical symbol Eu, atomic number 63 aur atomic mass 151.96 hae. Ii Lanthanide group ke ek member hae.

Atomic Structure
Symbol Eu
Atomic Number 63
Atomic Mass 151.96 g/mol
Periodic Table
Group 3
Row / Period 6
Element Category Transition dhaatu
Chhapa
Europium ke electron shell
badlo