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Tellurium (Te) – Element 52 of the periodic table

Tellurium (symbol Te) is element number 52 of the periodic table and belongs to the “Metalloid” category. Its atomic mass is about 127.6, and its phase under standard conditions is Solid. This element sits in period 5 and group 16 of the periodic table, and its electrons are arranged in shells of 2, 8, 18, 18, 6. The short electron configuration of Tellurium is [Kr] 4d¹⁰ 5s² 5p⁴. Known uses of Tellurium include Solar cells, Blu-ray discs and Rubber.

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Properties of Tellurium

Atomic number
52
Chemical symbol
Te
Atomic mass
127.6
Category
Metalloid
Period
5
Group
16
Phase
Solid
Protons
52
Electrons
52
Neutrons (approx.)
76
Electron shells
2, 8, 18, 18, 6
Outer-shell electrons
6
Discovered
Franz-Joseph Müller von Reichenstein (1782)

Electron configuration of Tellurium

The electron configuration of Tellurium (Te), with 52 electrons, is shown below. The last shell (shell 5) is highlighted:

Full configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁴
Short configuration
[Kr] 4d¹⁰ 5s² 5p⁴
Last shell
5s² 5p⁴

What is electron configuration and how is it written?

Electron shells of Tellurium

Distribution of 52 electrons of Tellurium across shells K to O:

  1. K2
  2. L8
  3. M18
  4. N18
  5. O6

What is a metalloid?

The metalloids have properties between metals and nonmetals, and many of them are semiconductors.

Uses of Tellurium

Frequently asked questions about Tellurium

What is the atomic number of Tellurium?

The atomic number of Tellurium (Te) is 52; that is, every atom of it has 52 protons.

What is the electron configuration of Tellurium?

The electron configuration of Tellurium (Te) is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁴; in short form it is [Kr] 4d¹⁰ 5s² 5p⁴, and its last shell is 5s² 5p⁴.

What is the chemical symbol of Tellurium?

The chemical symbol of Tellurium is Te.

Where is Tellurium located in the periodic table?

Tellurium is located in period 5 and group 16 and belongs to the “Metalloid” category.

What is the atomic mass of Tellurium?

The atomic mass of Tellurium is about 127.6 (atomic mass units).

What is the phase of Tellurium under normal conditions?

The phase of Tellurium under standard conditions is Solid.

What are the uses of Tellurium?

Uses of Tellurium include Solar cells, Blu-ray discs and Rubber.

Who discovered Tellurium?

Tellurium was discovered by Franz-Joseph Müller von Reichenstein in 1782.

Elements in the same category as Tellurium (Metalloid)

Boron (B)Silicon (Si)Germanium (Ge)Arsenic (As)Antimony (Sb)

See all Metalloids

Tellurium’s group 16 neighbours

Oxygen (O)Sulfur (S)Selenium (Se)Polonium (Po)Livermorium (Lv)

Group 16 of the periodic table