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The Nitrogen (Periodic Element n°7)

NITROGEN

( Greek a + zoos = lifeless)

SYMBOL: N

ATOMIC NUMBER: 7

MOLAR MASS (g\mol): 14,01

NORMAL STATE: gaseous

DENSITY (g*cm-3): 1,04

MELTING POINT (°C): -210

BOLING POINT (°C): -196

IONIZATION ENERGY (Kj\mol): 1400, 2856

ELECTRON AFFINITY (Kj\mol): -7

ELECTRONEGATIVITY: 3,0

MAIN OXIDATION STATES: -3, +3, +5

ATOMIC RADIUS (pm): 71

IONIC RADIUS (pm): 171 ( -3)