Comparison of Iodine and Xenon

Attribute	Iodine ×	Xenon ×
Atomic mass (u)	126.9045	131.29
Standard state	Solid	Gas
Oxidation states	-1 +1 +5 +7	0
Electron configuration	[Kr]5s²4d¹⁰5p⁵	[Kr]5s²4d¹⁰5p⁶
Atomic radius (van der waals) (pm)	198	216
Electronegativity (pauling scale)	2.66	2.6
Electron affinity (eV)	3.059	-
Ionization energy (eV)	10.451	12.13
Boiling point (K)	457.55	165.03
Melting point (K)	386.85	161.36
Density (g/cm³)	4.93	0.005887
Atomic number	53	54
Group name	Halogen	Noble gas
Symbol	I	Xe
Discovered (year)	1811	1898