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