7 - Nitrogen diatomic nonmetal

Discovered by Daniel Rutherford in 1772

  • Atomic Radius (Å)
  • Cividis
Nitrogen

Nitrogen is a chemical element with symbol N and atomic number 7. It is the lightest pnictogen and at room temperature, it is a transparent, odorless diatomic gas. Nitrogen is a common element in the universe, estimated at about seventh in total abundance in the Milky Way and the Solar System.

H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
57-71 La-Lu Lanthanides
89-103 Ac-Lr Actinides
 Shell Electrons Orbitals
122 in 1s
252 in 2s + 3 in 2p
NitrogenNElectron 1Electron 2Electron 1Electron 2Electron 3Electron 4Electron 5
colorless gas, liquid or solid Appearance
14  u Atomic Mass
0.65  Å Atomic Radius
77.4  K Boiling Point
15 Group
-3, 3, 5 Common Oxidation States
0.71  Å Covalent Radius
0.00125  g/cm³ Density
−6.8  kJ/mol Electron Affinity
1s2 2s2 2p3 Electron Configuration
[He] 2s2 2p3 Electron Configuration (semantic)
3.04 Electronegativity
7 Electrons
14.5  eV First Ionization Energy
-3, -2, -1, 1, 3, 5 ICSD Oxidation States
1402.3, 2856, 4578.1, 7475, 9444.9, 53266.6, 64360  kJ/mol Ionization Energies
63.3  K Melting Point
100 Mendeleev Number
2 Number of Shells
5 Electron Valency
7 Neutrons
7 Atomic Number
8 Number of Isotopes
-3, -2, -1, 1, 2, 3, 4, 5 Oxidation States
2 Period
Gas Phase
7 Protons
2, 5 Electron Shell Occupations