Qivx Inc. Integral Scientist Periodic Table: Properties of Nitrogen, Element 7, N

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Nitrogen

Styles	Standard	Bayley	Extended	Octet	Electron	Quantum
ISPT
	Element Properties: General - Physical - Chemical - Nuclear - Energy

Nitrogen General Information
Categories Class: Non-Metals Period: 2 IUPAC group: 15 Traditional: Vb	History Discovered in: 1772 by Rutherford Origin of name: Greek: nitron, (soda) & genes (forming) Historical or alternate name:
Common natural occurrences 78% of air	Description Colorless, odorless gas. Minimally reactive at room temperature. A component of many organic and inorganic compounds.
Abundances Atmosphere: 780900 ppm Primitive mantle: ~0.0 ppm Sea water: 0.8 ppm Metallic meteorite: 3180.0 ppm Continental crust: 20.0 ppm Solar photosphere: 7.94 log of abundance Oceanic crust: ~0.0 ppm Solar system: 2.480e+6 relative to Si=1.0e6	Hazards and Tolerances Hazards Nonflammable gas. Asphyxiation possible. Low toxicity.. Human daily limits Lower:Required Upper:

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Nitrogen Physical Properties

Transitional Data

State: Gas
Density: 1.2506 g/L

Molar enthalpy

Atomization: 470.842 kJ mol-1
Fusion: 0.720 kJ mol-1
Vaporization: 5.577 kJ mol-1

Transition points

Melting point: 63.29 K
Boiling point: 77.4 K
Critical temperature: 126.2 K

Molar properties

Atomic weight: 14.00674 g/mole
Molar volume: 13.727 cm3 mol-1

Crystal structure sequence

face-centered-cubic <36 K < hexagonal < melting point

Thermodynamics

State: gas (N2)
- Enthalpy 0
- Gibbs function 0
- Entropy 191.61
- Heat Capacity 29.125

State: gas (atoms)
- Enthalpy 472.704
- Gibbs function 455.563
- Entropy 153.298
- Heat Capacity 20.786

Miscellaneous physical

Electrical resistivity: µ-ohms/cm
Debye temperature: K
Thermal conductivity: 0.0258 W / m / K
Coefficient of linear expansion: Coef. per K
Mass magnetic susceptibility: -5.4e-9
X-ray diffraction mass absorption coefficients:

CuK: 7.52 (µ/p)/cm2 g-1
MoK: 0.916 (µ/p)/cm2 g-1

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Nitrogen Chemical Properties

Chemical basics:

Oxidation states: -3 -2 -1 +1 +2 +3 +4 +5
Molecular wt: 14.00674 g/mole

Radii

Covalent: 70 pm
Atomic: 74.0 pm
Van der Waals: 154 pm

Ions:

ion: -3pm 171.0
ion: +3 pm 16.0
ion: +5 pm 13.0

Covalent bonds

Bond:
N-H
N-N
N=N
NðN
N-Cl

Radius
101
147
125
110
195

Energy
390
160
415
946
193

Effective nuclear charge

Slater: 3.90
Clementi: 3.83
Froese-Fischer: 3.46

Electronegativity

Pauling: 3.04
Allred-Rochow: 3.07

Standard reactions

oxidation =>
H2N202 + 2H+ + 2e- =>
N20 + 2H+ + 2e- =>
2NH3OH+ + H+ +2e- =>
N2H5+ + 3H+ + 2e- =>
2HN02 + 4H+ + 4e- =>
N2O4 + 2H+ + 2e- =>
HN02 + H- + e- =>
NO3- + 4H+ + 3e- =>
NO3- + 3H+ + 2e- =>
2NO3- + 4H+ + 2e- =>
2N0 + 2H+ + 2e- =>
N2 + 2H2O + 4H+ + 2e- =>
3N2 + 2H+ + 2e- =>

reduction
N2 + 2H2O
N2 + H20
N2H5 + 2H2O
2NH4+
N2O + 3H2O
2HNO2
NO + H2O
NO + 2H2O
HNO2 + H2O
N2O4 + 2H2O
H2N2O2
2NH3OH+
2HN3

potential
2.65
1.77
1.42
1.27
1.27
1.07
0.99
0.96
0.94
0.80
0.71
-1.87
-3.1

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Nitrogen Nuclear Properties
Isotopes
Number of isotopes: Known 8 Listed 2	Isotope range: Known 12 - 18 Listed 14 - 15
Nuclide 14 % Occ.:Natural 99.634% Mossbauer NRA: Nuclear spin/Quantum no.: 1/0 Radioisotopes: Half-life: Decay mode: Source: Notes	Nuclide 15 % Occ.:Natural 0.366% Mossbauer NRA: Nuclear spin/Quantum no.: 1/2 Radioisotopes: Half-life: Decay mode: Source: Notes
Thermal neutron capture Isotope Cross-section 0.075±0.008 barns
Nuclear magnetic resonance
Nuclide: 14 Absolute sensitivity: 1.01e-3 1H=1.0 Relative sensitivity: 1.01e-3 1H=1.0 Receptivity: 5.69 13C=1.0 Magnetogyric ratio: 1.9331e7 rad / T / s Quadropole moment: 1.6e-30 m2 Frequency: 7.224 MHz Reference: MeNO2

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Nitrogen Energy Properties

Electrons

Ground state electron configuration: 1s2 2s2 2p3
Electron affinity: -7 kJ mol-1
Filling orbitals:

Ionization energies

Ionization level
N -> N+
N+ -> N+2

Ionization potential
1402.3
2856.1

Atomic energy levels

Orbital
np
ns

Energy
1.8409
3.6968

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