Hs
Transition metal
Hassium
Z 108A 269mass 269
Atomic model
tap a particleEvery nucleon is drawn individually — 108 protons and 161 neutrons packed into the nucleus, with 108 electrons on shells outside.
108+1
Protons
Set the element — change this and it becomes a different atom.
1610
Neutrons
Change only these and you get a different isotope of the same element.
108−1
Electrons
Sit outside the nucleus and decide the chemistry, not the element.
Element data
- Nucleons
- 269 (108 p + 161 n)
- Electron shells
- 2 · 8 · 18 · 32 · 32 · 14 · 2
- Valence shell
- 2 electrons
- Atomic mass
- 269 u
Stability
Hassium has no measured radioactive isotope in this lab — its nuclei are stable, so decay must be shown as an illustration.
Open the decay lab