3D Bohr-model representation of the Nitrogen atom (symbol N, atomic number Z=7). Electron shell configuration: 2, 5 electrons.
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Bohr model · educational
Bohr model of nitrogen
Nitrogen (N) has 7 electrons, spread over 2 shells. The diagram places them on circles around the nucleus, from the K shell — the closest — outward.
| Shell | Electrons |
|---|---|
| K (n = 1) | 2 |
| L (n = 2) | 5 |
The Bohr model is a teaching picture: electrons do not travel in circular orbits, but the number of electrons per shell is exact.
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The three states of matter
Solid, liquid, gas: three ways to arrange particles. Consequences on shape, volume, and phase transitions.
8 minElectron configuration
Full1s² 2s² 2p³
Short[He] 2s² 2p³
Valence electrons5
KLMNOPQ shells
K2
L5
Electronegativity
Pauling3.04
Allen3.066
Mulliken (eV)—
Atomic radii
Empirical65 pm
Calculated56 pm
Covalent71 pm
Van der Waals155 pm
Ionic radii (Shannon-Prewitt)
-3146 pm
Successive ionisation energies
I₁1402.3 kJ/mol
I₂2856 kJ/mol
I₃4578.1 kJ/mol
I₄7475 kJ/mol
I₅9444.9 kJ/mol
Electron affinity-6.8 kJ/mol
Oxidation states
-3-2-10+1+2+3+4+5
Bold states = most common.
Warm-up
Nitrogen — do you remember?
3 questions on this page. The right answer shows every time, and nothing is asked of you to play.
No account · one minute