Comparison of Nitrogen and Fluorine

Attribute	Fluorine ×	Nitrogen ×
Standard state	Gas	Gas
Electron affinity (eV)	3.339	-
Electron configuration	[He]2s²2p⁵	[He]2s²2p³
Atomic mass (u)	18.99840316	14.007
Electronegativity (pauling scale)	3.98	3.04
Oxidation states	-1	-3 -2 -1 +1 +2 +3 +4 +5
Ionization energy (eV)	17.423	14.534
Atomic radius (van der waals) (pm)	135	155
Boiling point (K)	85.03	77.36
Melting point (K)	53.53	63.15
Density (g/cm³)	0.001696	0.0012506
Atomic number	9	7
Group name	Halogen	Nonmetal
Discovered (year)	1670	1772
Symbol	F	N