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Roentgenium

(Rg)

Category

Transition metal

Relative atomic mass

269.1087

Density

13.51

Melting point (°C)

1342

Boiling point (°C)

3100

Electronegativity (Pauling)

1.28

Discovery year

1949

Discovered by

Glenn T. Seaborg

created by @lukaswyss

Roentgenium (Rg) – Element 111