Comparison of Xenon and Radon

Attribute	Xenon ×	Radon ×
Standard state	Gas	Gas
^1↑Electron configuration	[Kr]5s²4d¹⁰5p⁶	[Xe]6s²4f¹⁴5d¹⁰6p⁶
Atomic mass (u)	131.29	222.01758
Electronegativity (pauling scale)	2.6	-
Oxidation states	0	0
Ionization energy (eV)	12.13	10.745
Atomic radius (van der waals) (pm)	216	220
Boiling point (K)	165.03	211.45
Melting point (K)	161.36	202
Density (g/cm³)	0.005887	0.00973
Atomic number	54	86
Group name	Noble gas	Noble gas
Symbol	Xe	Rn
Discovered (year)	1898	1900