Neptunium ek chemical element hae, jiske chemical symbol Np, atomic number 93 aur aomic mass 237 hae . Periodic table me ii uu chemical elements ke group me hae jiske Actinoids bolaa jaae hae.

Atomic Structure
Symbol Np
Atomic Number 93
Atomic Mass 237 g/mol
Periodic Table
Group 3
Row / Period 7
Element Category Transition dhaatu
Chhapa
Neptunium ke electron shell