Yb
Lanthanide
Ytterbium
Z 70A 173mass 173.05
Atomic model
tap a particleEvery nucleon is drawn individually — 70 protons and 103 neutrons packed into the nucleus, with 70 electrons on shells outside.
70+1
Protons
Set the element — change this and it becomes a different atom.
1030
Neutrons
Change only these and you get a different isotope of the same element.
70−1
Electrons
Sit outside the nucleus and decide the chemistry, not the element.
Element data
- Nucleons
- 173 (70 p + 103 n)
- Electron shells
- 2 · 8 · 18 · 32 · 8 · 2
- Valence shell
- 2 electrons
- Atomic mass
- 173.05 u
Stability
Ytterbium has no measured radioactive isotope in this lab — its nuclei are stable, so decay must be shown as an illustration.
Open the decay lab