Tellurium Electron Configuration

Tellurium Electron Configuration

The electron configuration of tellurium is [Kr] 4d10 5s2 5p4, which means it has 2 electrons in the outermost shell. Tellurium is a metalloid element with the atomic number 52, and it belongs to the group of chalcogens in the periodic table.


It has a greyish-white appearance and is commonly used in alloys, semiconductors, and solar panels. Tellurium is also known to exhibit photovoltaic and thermoelectric properties, making it a promising material for renewable energy technologies. We will discuss the electron configuration of tellurium in detail and explore its properties and uses.


The Electron Configuration Of Tellurium


Tellurium’s electron configuration is [Kr] 4d10 5s2 5p4. It has six valence electrons in its outermost shell, making it a member of the oxygen family. This semi-metal is known for its semiconductor and metalloid properties.

What Is Electron Configuration?

Electron configuration refers to the arrangement of electrons in an atom’s energy levels or shells. Electrons occupy the lowest energy shells first before moving to the higher levels. An atom’s electron configuration determines its chemical and physical properties, including its ionization energy, electronegativity, and reactivity.

What Is Tellurium’s Electron Configuration?

Tellurium is a chemical element with the symbol Te and atomic number 52. Its electron configuration is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p4, where the 1s2 level holds two electrons, and the 2s2, 2p6, 3s2, 3p6, 3d10, 4s2, 4p6, 4d10, and 5s2 levels can hold up to 18 electrons each.

Understanding Tellurium’s Shells And Subshells

Tellurium has five valence electrons in the 5s and 5p orbitals, making it a p-block element. Its electron configuration shows that it has a filled 4d10 subshell, which contributes to its high melting and boiling points. Additionally, the 5p subshell has only four electrons, making tellurium electron-deficient, which contributes to its reactivity.

Why Is Tellurium’s Electron Configuration Important?

Knowing the electron configuration of tellurium or any other element can help predict its chemical behavior. By looking at the number of valence electrons, you can determine whether an atom is more likely to gain or lose electrons in a chemical reaction. Additionally, understanding the subshells and energy levels that an element’s electrons occupy can help explain its unique chemical and physical properties.

Properties Of Tellurium


Tellurium, a rare metalloid element, has an electron configuration of [Kr]4d10 5s2 5p4. It is brittle, silvery-white and semiconducting in nature, and used in alloys, solar panels and electronics industry.

Tellurium is a metalloid element with the atomic number 52 and symbol Te. It is a brittle, silver-gray substance that belongs to the chalcogen group on the periodic table, which also includes sulfur and selenium. Tellurium is primarily used in the production of alloys, solar panels, and in some electronic devices. Let’s take a closer look at the properties of Tellurium.

Physical Properties

Tellurium has unique physical properties that make it stand out from other elements. Here are some of its physical properties:

  • Tellurium has a density of 6.24 g/cm3.
  • It is a brittle, lustrous metalloid that exhibits a silvery-gold color when found in its pure form.
  • Its melting point is 722.66 Kelvin, and its boiling point is 1,261 Kelvin.
  • It is a semiconductor, which means that it can conduct some electricity under certain conditions.

Chemical Properties

Tellurium has a unique set of chemical properties that make it valuable in various industrial applications. Here are some of its chemical properties:

  • Tellurium has six stable isotopes.
  • It reacts with oxygen, halogens, and acids to form various tellurium oxides, halides, and salts.
  • It is mildly toxic and can cause skin irritation and respiratory problems when inhaled.
  • Tellurium can form alloys with several metals, including lead, copper, and silver.

Significance Of Tellurium’s Properties

Tellurium’s properties make it an essential element in various industrial applications. Here are some ways in which its properties are significant:

Application Significance of Tellurium’s Properties
Alloys for Solar Panels Tellurium’s semiconductor properties make it an ideal component for alloys used in solar panels, as it can convert sunlight directly into electricity.
Electronics Tellurium’s ability to form alloys with other metals makes it valuable in the production of various electronic devices, such as CDs and DVDs.
Metallurgy It is used in metallurgy to improve the properties of metals when used as an alloying agent.
Chemical Industry Tellurium compounds are used in the production of rubber and other chemically resistant materials.

In conclusion, Tellurium’s unique physical and chemical properties make it an essential element in many industrial applications. Its properties are vital in the production of solar panels, electronic devices, and other chemical industries.

Applications Of Tellurium


Tellurium’s electron configuration allows it to be used in a variety of applications. It is commonly used in the production of alloys, semiconductors, and solar panels. Additionally, it has antibacterial properties and can be found in some medicinal products.

Tellurium is a brittle, silver-white metalloid that belongs to the selenium group. It has numerous applications in industries such as metallurgy, solar energy, and more. Here we explore some of these applications in detail:

Metallurgy And Alloys

Tellurium is widely used in the manufacturing of free-machining steels, cast iron, and copper alloys. This is because it improves the machinability and durability of these alloys. It is also used in the production of lead-free solders, which are essential in the electronics industry as they have lower toxicity levels compared to lead solders. Moreover, tellurium can be added to lead or copper electrodes to increase their resistance to corrosion and improve their lifespan.

Solar Energy

Tellurium is a vital component in the production of solar cells, and its usage has significantly increased in recent times due to the demand for renewable energy sources. When combined with cadmium and sulfur, tellurium forms cadmium telluride, which is a photoelectric material used in thin-film solar cells. The solar cells made of cadmium telluride are highly efficient and can absorb sunlight more effectively than traditional silicon-based solar cells.

Other Uses

Apart from metallurgy and solar energy, tellurium has other applications. Some of these applications include:

  • Tellurium is an essential ingredient in blasting caps and detonators used in the explosives industry.
  • It is used in the production of thermoelectric materials, which are used in power generation technology.
  • It is used as a coloring agent in glass and ceramics industries, producing a wide array of colors such as ruby red and green.

In conclusion, tellurium plays a crucial role in various industries such as metallurgy, solar energy, and more. Its unique properties make it an indispensable element in the manufacturing of numerous alloys, solar cells, and other products.



Frequently Asked Questions For Tellurium Electron Configuration


How Do You Write The Electron Configuration For Tellurium?


To write the electron configuration for tellurium, use the Aufbau principle and place electrons in increasing order of energy levels and sublevels. Tellurium has 52 electrons, so the configuration is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p4.


What Element Has An Electron Configuration Of 1s 2 2s 2 2p 6 3s 2 3p 4?


The element with an electron configuration of 1s2 2s2 2p6 3s2 3p4 is sulfur.


What Is The Electron Configuration Of Ts 117?


The electron configuration of Ts 117 is [Rn] 5f14 6d10 7s2 7p5.


What Element Is The Following Electron Configuration For Ar 4s23d6?


The given electron configuration is for Argon, which has 18 protons in its nucleus. The configuration indicates that it has 2 electrons in the 4th shell (4s2) and 6 electrons in the 3rd shell (3d6).




Overall, understanding the electron configuration of tellurium is essential for appreciating its unique properties and behaviors. By being aware of the arrangement of electrons in tellurium atoms, scientists and researchers can predict its chemical reactions, and even apply its potential applications in various industries.


While it may seem complex at first, mastering this concept is an important step towards advancing our knowledge of the elements we use every day. Keep exploring and learning about the fascinating world of chemistry!

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