PERIODIC ELEMENT
Rg (Roentgenium)

 



Atomic number : 111
Atomic mass : 272 g.mol-1
Electronegativity according to Pauling : unknown
Density : unknown
Melting point : unknown
Boiling point : unknown
Vanderwaals radius : unknown
Isotopes : 1
Electronic shell : [Rn] 5f146d10 7s1
Discovered by : S. Hofmann in 1994
 
Atomic Structure Uses (No uses known )