Comparison of Nitrogen and Krypton

Attribute	Krypton ×	Nitrogen ×
Standard state	Gas	Gas
Electron configuration	[Ar]4s²3d¹⁰4p⁶	[He]2s²2p³
Atomic mass (u)	83.8	14.007
Electronegativity (pauling scale)	3	3.04
Oxidation states	0	-3 -2 -1 +1 +2 +3 +4 +5
Ionization energy (eV)	14	14.534
Atomic radius (van der waals) (pm)	202	155
Boiling point (K)	119.93	77.36
Melting point (K)	115.79	63.15
Density (g/cm³)	0.003733	0.0012506
Atomic number	36	7
Group name	Noble gas	Nonmetal
Discovered (year)	1898	1772
Symbol	Kr	N