Tellurium (Te) — Element 52: Properties & Data | Aladdin Scientific
Tellurium(Te) — Element 52
Tellurium (Te) is a metalloid with atomic number 52 and atomic mass 127.6. It has melting point 722.66 K (450 °C), boiling point 1261 K (988 °C), density 6.232 g/cm³. It sits in group 16 and period 5 of the periodic table and was discovered in 1782.
Key facts
| Atomic mass | 127.6000 u |
|---|---|
| Electron configuration | [Kr]5s2 4d10 5p4 |
| Oxidation states | +6, +4, -2 |
| Electronegativity (Pauling) | 2.1 |
| Atomic radius (van der Waals) | 206 pm |
| Ionization energy | 9.01 eV |
| Electron affinity | 1.971 eV |
| Melting point | 722.66 K |
| Boiling point | 1261 K |
| Density | 6.232 g/cm³ |
| Standard state | Solid |
| Year discovered | 1782 |
Frequently asked questions
What is the electron configuration of tellurium?
The ground-state electron configuration of tellurium is [Kr]5s2 4d10 5p4.
What group and period is tellurium in?
Tellurium (Te) is in group 16 and period 5 of the periodic table, classified as a metalloid.
What is the melting point of tellurium?
Tellurium melts at 722.66 K (450 °C).
What is the standard state of tellurium?
Tellurium is a solid at standard temperature and pressure.
Related elements
About this data: property values compiled from IUPAC Standard Atomic Weights (2021), the NIST Atomic Spectra Database, and PubChem. Curated by the Aladdin Scientific technical team. Last reviewed: .