Tellurium (pronounced /tɪˈlʊəriəm, tɛ-/ te-LOOR-ee-əm) is a chemical element that has the symbol Te and atomic number 52. A brittle, mildly toxic, silver-white metalloid which looks similar to tin, tellurium is chemically related to selenium and sulfur. Tellurium is primarily used in alloys and as a semiconductor.
Tellurium is extremely rare, the ninth rarest metallic element on Earth. It is in the same chemical family as oxygen, sulfur, selenium...
more
Read article at Wikipedia
Tellurium
Chemical Element
The 52nd Element in the Periodic Table
← Previous
Antimony
Antimony (pronounced /ˈæntɨmɵnɪ/ AN-ti-mo-nee) is a chemical element with the symbol Sb (Latin: stibium, meaning "mark") and atomic number 51. A...
Symbol:
- Te
Atomic mass:
| Mass | Uncertainty |
|---|---|
|
|
Electrons per shell:
- 2,8,18,18,6
Electron affinity:
| Value | Uncertainty |
|---|---|
|
|
Electronegativity (Pauling scale):
- 2.1
Atomic radius:
- 140 pm (0.00000551 )
Covalent radius:
- 1.35 pm (5.31E-8 )
Van der Waals radius:
- 210 pm (0.00000827 )
Isotopes:
- Tellurium-129
- Tellurium-128
- Tellurium-127
- Tellurium-126
- Tellurium-130
- Tellurium-120
- Tellurium-121
- Tellurium-122
- Tellurium-123
- Tellurium-124
Melting Point:
- 449.57 °C (841.23 °F )
Boiling Point:
- 987.85 °C (1810.1 °F )
Periodic table block:
Ionization Energy:
- 9.0096 eV (0.0000090096 MeV )
Discovery Date:
- 1782
Discovering Country:
Electron Configuration:
- Kr 4d10 5s2 5p4