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Atomic Structure
Symbol Pa
Atomic Number 91
Atomic Mass 231.04g/mol
Periodic Table
Group 3
Row / Period 7
Element Category Transition dhaatu
Protactinium ke electron shell

Protactinium ek chemical element hae, jiske chemical symbol Pa, atomic number 91 aur aomic mass 231.04 hae . Periodic table me ii uu chemical elements ke group me hae jiske Actinoids bolaa jaae hae.