Promethium

Promethium ek chemical element hae, jiske Chemical symbol Pm, atomic number 61 aur atomic mass 145 hae. Ii Lanthanide group ke ek member hae.

Atomic Structure
Symbol	Nd
Atomic Number	60
Atomic Mass	144.24 g/mol
Periodic Table
Group	3
Row / Period	6
Element Category	Transition dhaatu
Chhapa
Promethium ke electron shell

Chhapa ke gallery

• Promethium ke light source ke rakam kaam me law jaae hae
  Promethium ke light source ke rakam kaam me law jaae hae