Te
Metalloid
Tellurium
Z 52A 128mass 127.6
Atomic model
tap a particleEvery nucleon is drawn individually — 52 protons and 76 neutrons packed into the nucleus, with 52 electrons on shells outside.
52+1
Protons
Set the element — change this and it becomes a different atom.
760
Neutrons
Change only these and you get a different isotope of the same element.
52−1
Electrons
Sit outside the nucleus and decide the chemistry, not the element.
Element data
- Nucleons
- 128 (52 p + 76 n)
- Electron shells
- 2 · 8 · 18 · 18 · 6
- Valence shell
- 6 electrons
- Atomic mass
- 127.6 u
Stability
Tellurium has no measured radioactive isotope in this lab — its nuclei are stable, so decay must be shown as an illustration.
Open the decay lab