Roentgenium ek chemical element hae, jiske chemical symbol Rg, atomic number 111 aur atomic mass 281 hae. Ii ek badalte dhaatu (Transition metal) hae. Iske 1994 me pawa gais rahaa aur iske naam [[Germany] ke Physicist, Wilhelm Conrad Röntgen, ke honour me rakkhaa gais hae.

Atomic Structure
Symbol Rg
Atomic Number 111
Atomic Mass 281 g/mol
Periodic Table
Group 11
Row / Period 7
Element Category Badalte dhaatu
Chhapa
Roentgenium ke electron shell