Comparison of Argon and Xenon

Attribute	Xenon ×	Argon ×
Electronegativity (pauling scale)	2.6	-
Atomic mass (u)	131.29	39.9
Standard state	Gas	Gas
Oxidation states	0	0
Electron configuration	[Kr]5s²4d¹⁰5p⁶	[Ne]3s²3p⁶
Ionization energy (eV)	12.13	15.76
Atomic radius (van der waals) (pm)	216	188
Boiling point (K)	165.03	87.3
Melting point (K)	161.36	83.8
Density (g/cm³)	0.005887	0.0017837
Atomic number	54	18
Group name	Noble gas	Noble gas
Discovered (year)	1898	1894
Symbol	Xe	Ar