Name :  Roentgenium
Symbol :  Rg
Atomic Number :  111
Atomic Weight :  (272)
Specific Heat :  -
Melting Point :  -
Vaporization :  -
Boiling Point :  -
Electronegativity :  -
Density@293 K :  -
Discovered :  Heavy Ion Research Laboratory (HIRL), Germany, 1994
Description :  Synthetic radioactive metal.
Uses :  It has no significant commercial applications.