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Radon
(Rn)
Rn
Category
Noble gas
Relative atomic mass
222
Density
0.00973
Melting point (°C)
202
Boiling point (°C)
211
Electronegativity (Pauling)
2.2
Discovery year
1900
Discovered by
William Ramsay and Morris William Travers
created by @lukaswyss
Radon (Rn) – Element 86