Tellurium (Te) – Periodic Table [Element Information & More]

tellurium element periodic table

Tellurium element (Te) is in group 16 and period 5 of a periodic table. Tellurium is in the p-block and it is classified as a metalloid on the periodic table.

There is a lot more information related to tellurium which is mentioned in the Information Table given below.

So let’s dive right into it!

Table of contents

Tellurium Element (Information Table)

The important data related to tellurium element is given in the table below.

Appearance of telluriumCrystalline form: Silvery gray lustrous surface
Amorphous form: Brown-black powder
Atomic number of tellurium52
Symbol of telluriumTe
Atomic mass of tellurium127.6 u
Protons, Neutrons & Electrons in telluriumProtons: 52, Neutrons: 76, Electrons: 52
State of tellurium (at STP)Solid
Group number of tellurium in periodic table16
Period number of tellurium in periodic table5
Block of tellurium in periodic tablep-block
Category of telluriumMetalloids
Bohr model or Electrons per shell or Electrons arrangement in tellurium2, 8, 18, 18, 6
Electron configuration of tellurium[Kr] 4d10 5s2 5p4
Orbital diagram of telluriumorbital diagram of tellurium
Valence electrons in tellurium6
Electronegativity of tellurium (on pauling scale)2.1
Atomic radius of tellurium (van der Waals radius)206 picometers
Density of tellurium6.24 g/cm3
1st ionization energy of tellurium9.01 eV
Main isotope of tellurium130Te
Melting point of tellurium722.6 K or 449.5 °C or 841.1 °F
Boiling point of tellurium1261 K or 988 °C or 1810 °F
Crystal structure of telluriumHexagonal
Discovery of telluriumBy Franz-Joseph Müller von Reichenstein in 1782

Also see: Interactive Periodic Table (It has rotating bohr models as well as many other details of all the 118 elements in a single periodic table).

Tellurium element in Periodic table

The Tellurium element (Te) has the atomic number 52 and is located in group 16 and period 5. Tellurium is a metalloid and it is classified as a chalcogens element.

Click on above elements in the periodic table to see their information.

Facts about tellurium

Here are a few interesting facts about tellurium element.

  1. Tellurium was named after a Latin word “Tellus” which means earth.
  2. Tellurium was discovered by Franz-Joseph Müller von Reichenstein in 1782.
  3. Most of the tellurium is produced by China and because of this, China ranks #1 for the production of tellurium.
  4. Tellurium is found in a mineral form along with gold and other metals.
  5. Tellurium shows few properties of metals and few properties of nonmetals.

Properties of tellurium

Here is a list of some physical properties and chemical properties of tellurium.

Physical properties of tellurium

  • Tellurium is a metalloid having a silvery white luster.
  • There are many isotopes of tellurium, and out of these isotopes, the most abundant isotope is 130Te (it has an abundance of around 34%).
  • Tellurium has hexagonal crystal structure.
  • The melting point and boiling point of tellurium is 722.6 K and 1261 K respectively.
  • The density of tellurium is 6.24 g/cm3 and its atomic mass is 127.6 u.

Chemical properties of tellurium

  • At higher temperatures, tellurium reacts with oxygen and forms Tellurium oxide.
  • Tellurium produces a greenish-blue flame when it is heated in the presence of air.
  • Tellurium has an electronegativity of 2.1 on the pauling scale.
  • The common oxidation states of tellurium are +4 and +5.

Uses of tellurium

Here are some uses of the tellurium element.

  • Tellurium is added to metals like steel and copper. Because of this, the machinability of these metals can be improved.
  • The strength and corrosive resistance property of lead can be improved by adding tellurium to it.
  • Tellurium metal is also used in ceramics as well as in some castings.
  • Some superconductors also contain tellurium metal in it.
  • Tellurium is also used in solar panels.

External resources:

  1. Periodic Table of Elements: Los Alamos National Laboratory. (n.d.). Periodic Table of Elements: Los Alamos National Laboratory.
  2. Medina-Cruz, D., Tien-Street, W., Vernet-Crua, A., Zhang, B., Huang, X., Murali, A., Chen, J., Liu, Y., Garcia-Martin, J. M., Cholula-Díaz, J. L., & Webster, T. (2020). Tellurium, the Forgotten Element: A Review of the Properties, Processes, and Biomedical Applications of the Bulk and Nanoscale Metalloid. Racing for the Surface, 723–783.
  3. Tellurium – Wikipedia. (2010, January 16). Tellurium – Wikipedia.
  4. Atomic Weight of Tellurium | Commission on Isotopic Abundances and Atomic Weights. (n.d.). Atomic Weight of Tellurium | Commission on Isotopic Abundances and Atomic Weights.
  5. Atomic Data for Tellurium (Te). (n.d.). Atomic Data for Tellurium (Te).
  6. Tellurium – Element information, properties and uses | Periodic Table. (n.d.). Tellurium – Element Information, Properties and Uses | Periodic Table.
  7. It’s Elemental – The Element Tellurium. (n.d.). It’s Elemental – the Element Tellurium.
  8. P. (n.d.). Tellurium | Te (Element) – PubChem. Tellurium | Te (Element) – PubChem.
  9. Possolo, et al. (2018, January 4). Interpreting and propagating the uncertainty of the standard atomic weights (IUPAC Technical Report). Pure and Applied Chemistry, 90(2), 395–424.
  10. Emsley, J. (2011). Nature’s Building Blocks: An A-Z Guide to the Elements. United Kingdom: OUP Oxford.
  11. Haynes, W. M. (Ed.). (2014, June 4). CRC Handbook of Chemistry and Physics.
  12. Electronic structure of the elements. (2000, March). The European Physical Journal C, 15(1–4), 78–79.
  13. James A. M. & Lord M. P. (1992). Macmillan’s chemical and physical data. Macmillan.
  14. Bedford, et al. (1996, April 1). Recommended values of temperature on the International Temperature Scale of 1990 for a selected set of secondary reference points. Metrologia, 33(2), 133–154.
  15. Allred, A. (1961, June). Electronegativity values from thermochemical data. Journal of Inorganic and Nuclear Chemistry, 17(3–4), 215–221.

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