Cd
Transition metal
Cadmium
Z 48A 112mass 112.41
Atomic model
tap a particleEvery nucleon is drawn individually — 48 protons and 64 neutrons packed into the nucleus, with 48 electrons on shells outside.
48+1
Protons
Set the element — change this and it becomes a different atom.
640
Neutrons
Change only these and you get a different isotope of the same element.
48−1
Electrons
Sit outside the nucleus and decide the chemistry, not the element.
Element data
- Nucleons
- 112 (48 p + 64 n)
- Electron shells
- 2 · 8 · 18 · 18 · 2
- Valence shell
- 2 electrons
- Atomic mass
- 112.41 u
Stability
Cadmium has no measured radioactive isotope in this lab — its nuclei are stable, so decay must be shown as an illustration.
Open the decay lab