Mo
Transition metal
Molybdenum
Z 42A 96mass 95.95
Atomic model
tap a particleEvery nucleon is drawn individually — 42 protons and 54 neutrons packed into the nucleus, with 42 electrons on shells outside.
42+1
Protons
Set the element — change this and it becomes a different atom.
540
Neutrons
Change only these and you get a different isotope of the same element.
42−1
Electrons
Sit outside the nucleus and decide the chemistry, not the element.
Element data
- Nucleons
- 96 (42 p + 54 n)
- Electron shells
- 2 · 8 · 18 · 12 · 2
- Valence shell
- 2 electrons
- Atomic mass
- 95.95 u
Stability
Molybdenum has no measured radioactive isotope in this lab — its nuclei are stable, so decay must be shown as an illustration.
Open the decay lab