N
Reactive nonmetal

Nitrogen

Z 7A 14mass 14.007

Atomic model

tap a particle

Every nucleon is drawn individually — 7 protons and 7 neutrons packed into the nucleus, with 7 electrons on shells outside.

7+1
Protons

Set the element — change this and it becomes a different atom.

70
Neutrons

Change only these and you get a different isotope of the same element.

7−1
Electrons

Sit outside the nucleus and decide the chemistry, not the element.

Element data

Nucleons
14 (7 p + 7 n)
Electron shells
2 · 5
Valence shell
5 electrons
Atomic mass
14.007 u
Stability

Nitrogen has no measured radioactive isotope in this lab — its nuclei are stable, so decay must be shown as an illustration.

Open the decay lab