Comparison of Xenon and Radon

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