Te
Tellurium
Tellurium is a chemical element with the symbol Te and atomic number 52. It has a standard atomic weight of 127.6, sits in period 5 and group 16, and is classified as a metalloid.
Properties
| Symbol | Te |
|---|---|
| Atomic number | 52 |
| Standard atomic weight | 127.6 |
| Category | Metalloid |
| Group | 16 |
| Period | 5 |
| Electron configuration | [Kr] 4d10 5s2 5p4 |
| Outer-shell electrons | 6 |
The figure of 127.6 is a standard atomic weight.
Calculate with tellurium
- Molar mass of any formula containing it
- Electron configuration, including ions
- Effective nuclear charge by Slater's rules
- Average atomic mass from isotope abundances
Group 16
Atomic weights are the IUPAC 2021 standard values, abridged to the conventional five significant figures. Group, period, category and electron configuration are derived from the atomic number rather than stored, so they cannot drift out of step with it.