Rh
Transition metal
Rhodium
Z 45A 103mass 102.91
Atomic model
tap a particleEvery nucleon is drawn individually — 45 protons and 58 neutrons packed into the nucleus, with 45 electrons on shells outside.
45+1
Protons
Set the element — change this and it becomes a different atom.
580
Neutrons
Change only these and you get a different isotope of the same element.
45−1
Electrons
Sit outside the nucleus and decide the chemistry, not the element.
Element data
- Nucleons
- 103 (45 p + 58 n)
- Electron shells
- 2 · 8 · 18 · 15 · 2
- Valence shell
- 2 electrons
- Atomic mass
- 102.91 u
Stability
Rhodium has no measured radioactive isotope in this lab — its nuclei are stable, so decay must be shown as an illustration.
Open the decay lab