Comparison of Nitrogen and Argon

Attribute	Argon ×	Nitrogen ×
Standard state	Gas	Gas
Electron configuration	[Ne]3s²3p⁶	[He]2s²2p³
Atomic mass (u)	39.9	14.007
Electronegativity (pauling scale)	-	3.04
Oxidation states	0	-3 -2 -1 +1 +2 +3 +4 +5
Ionization energy (eV)	15.76	14.534
Atomic radius (van der waals) (pm)	188	155
Boiling point (K)	87.3	77.36
Melting point (K)	83.8	63.15
Density (g/cm³)	0.0017837	0.0012506
Atomic number	18	7
Group name	Noble gas	Nonmetal
Symbol	Ar	N
Discovered (year)	1894	1772