|
|
| Nitrogen | |
| Electron Configuration | 2,5 |
| Electron Configuration | 1s2 2s2 2p3 |
| Ground state | 4S°3/2 |
| Atomic Volume | 17.3 g/cm3 |
| Electronegativity | 3.04 |
| Magnetic ordering | No data |
| Mass magnetic susceptibility | -1 x 10-8 |
| Molar magnetic susceptibility | -1.401 x 10-10 |
| Speed of sound | 353 m s-1 |
 Thermal Properties |
|
| Enthalpy of Atomization | 472.8 kJ mol-1 @25°C |
| Enthalpy of Fusion | 0.720 kJ mol-1 |
| Enthalpy of Vaporisation | 5.577 kJ mol-1 |
| Heat Capacity | 29.124 J mol-1 K-1 |
| Thermal Conductivity | 25.83 W m-1 K-1 |
| Thermal Expansion | No data. |
| Electrical Properties |
|
| Electrical resistivity | No data. |
| Electrical conductivity | No data. |
| Chemical Properties |
|
| Electrochemical Equivalent | 0.10452 g Ah-1 |
| Valence Electron Potential (-eV) | 550 |
| Ionization Potential | |
 First
|
14.534 |
| Second
|
29.601 |
| Third
|
47.448 |
| Optical Properties |
|
| Refractive Index (gas) | 1.000298 |
| Refractive Index (liquid) | 1.197 |
| Energy Levels |
|
| Kα1 (intensity 100) |
0.3924 KeV |
| Atomic Radii |
|
| Empirical
|
65 pm |
| Bohr Radius
|
56 pm |
| Covalent Radius
|
75 pm |
| Van der Waals
|
155 pm |
| Triple covalent
|
54 pm |
| Metallic
|
No data. |
| Ionic Radii (Å) |
||||
| Charge | Coordination | Crystal | Ionic | Key |
| -3 | IV | 1.32 | 1.46 | |
| 3 | VI | 0.3 | 0.16 | A |
| 5 | III | 0.044 | -0.104 | |
| VI | 0.27 | 0.13 | A | |
| R, From r3 vs V plots. |
| C, Calculated from bond length - bond strength equations. |
| E, Estimated. |
| *, Most Reliable. |
| M, From Metallic Oxides. |
| A, Ahrens (1952) Ionic radius. |
| P, Pauling's (1960) Crystal Radius. |
| Oxidation States |
|
| Main
|
N-3, N-2, N-1, N0, N+2, N+3, N+4, N+5 |
| Other
|
|
Ionisation Energies (kJ mol-1)  |
|
| M - M+ |
1402.3 |
| M+ - M2+ |
2856.1 |
| M2+ - M3+ |
4578.0 |
| M3+ - M4+ |
7474.9 |
| M4+ - M5+ |
9440.0 |
| M5+ - M6+ |
53265.6 |
| M6+ - M7+ |
64358.7 |
| Covalent Bonds (kJ mol-1) |
|
| N-H
|
390 |
| N-N
|
160 |
| N=N
|
415 |
N N
|
946 |
| N-Cl
|
193 |
| N-C
|
286 |
| N=C
|
615 |
| NC
|
887 |
| Vapour Pressure |
||||||
| P (Pa) | 1 | 10 | 100 | 1K | 10K | 100K |
| T (K) | 37 | 41 | 46 | 53 | 62 | 77 |
| Crystal Structure |
|
| Structure
|
Hexagonal close packed |
 |
a = 386.1 pm |
| b = 386.1 pm | |
| c = 626.5 pm | |
| α = 90° | |
| β = 90° | |
| γ = 120° | |