Zn
Transition metal

Zinc

Z 30A 65mass 65.38

Atomic model

tap a particle

Every nucleon is drawn individually — 30 protons and 35 neutrons packed into the nucleus, with 30 electrons on shells outside.

30+1
Protons

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

350
Neutrons

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

30−1
Electrons

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

Element data

Nucleons
65 (30 p + 35 n)
Electron shells
2 · 8 · 18 · 2
Valence shell
2 electrons
Atomic mass
65.38 u
Stability

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

Open the decay lab