Nb
Transition metal
Niobium
Z 41A 93mass 92.906
Atomic model
tap a particleEvery nucleon is drawn individually — 41 protons and 52 neutrons packed into the nucleus, with 41 electrons on shells outside.
41+1
Protons
Set the element — change this and it becomes a different atom.
520
Neutrons
Change only these and you get a different isotope of the same element.
41−1
Electrons
Sit outside the nucleus and decide the chemistry, not the element.
Element data
- Nucleons
- 93 (41 p + 52 n)
- Electron shells
- 2 · 8 · 18 · 11 · 2
- Valence shell
- 2 electrons
- Atomic mass
- 92.906 u
Stability
Niobium has no measured radioactive isotope in this lab — its nuclei are stable, so decay must be shown as an illustration.
Open the decay lab