Calcium Electron Configuration: 7 Easy Steps to Follow!

An atom’s electronic configuration represents the distribution of electrons among the s,p,d, and f orbital. Let us discuss some facts about calcium electron configuration.

The Calcium electronic configuration is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s². The calcium atom contains 20 electrons, and the electronic configuration of calcium is 2,8,8,2. Ca also occurs in group 2 elements and one of the Alkaline earth metals in the periodic table.

This article will discuss some facts about calcium, such as electronic configuration, notation, unabbreviated electron configuration, orbital diagram of the ground state, and excited state calcium.

How to write calcium electron configuration.

The electronic configuration of Ca is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² which is written using the following steps-

• S orbit can hold maximum 2 electrons
• P orbit can hold maximum 6 electrons
• D orbit can hold maximum 10 electrons and
• F orbit can hold maximum 14 electrons

• Each orbital can fill certain number of electrons following three important rules such as Aufbau Principle, Hund’s rule and Pauli-Exclusion Principle

Calcium electron configuration diagram.

The electronic configuration of the calcium is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² where electrons are filled to the maximum capacity of the respective orbitals.

• 2 electrons in 1s orbit.
• 2 electrons in 2s orbit
• 6 electrons in 2p orbit.
• 2 electrons in 3s orbit.
• 6 electrons in 3p orbit
• 2 electrons in 4s orbit.

So, the diagram will be-

Calcium electron configuration notation.

Calcium electron configuration notation is [Ar] 4s²

Calcium unabbreviated electron configuration

The unabbreviated electron configuration of Ca is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s².

Ground state calcium electron configuration.

The ground state calcium electron configuration is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s².

Excited state of calcium electron configuration.

The electron configuration of calcium (Ca) in excited state is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 4p_x¹

Ground state calcium orbital diagram.

The ground state electronic configuration of calcium is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s², where 20 electrons are present in 4 shells-

• 2 electrons in K shell
• 8 electrons in L shell
• 8 electrons in M shell
• 2 electrons in N shell

Calcium 2+ electron configuration.

The electronic configuration of a Ca²⁺ ion is 1s² 2s² 2p⁶ 3s² 3p⁶, where it removes two electrons from the 4s orbit.

Calcium oxide electron configuration

•   Ca ²⁺ electron configuration is 1s² 2s² 2p⁶ 3s² 3p⁶

• O ^2- (contains 8 electrons) electron configuration is 1s² 2s² 2p⁶

Conclusion

The calcium (Ca) atom has 20 electrons in its orbit, and the electronic configuration of argon is present in the calcium atom. To donate electrons in the outer most shell of calcium, Oxygen accepts the 2 electrons and forms calcium oxide. Cao is an ionic compound.

Also Read:

• Europium electron configuration
• Selenium electron configuration
• Gadolinium electron configuration
• Nitrogen electron configuration
• Phosphorus electron configuration
• Astatine electron configuration
• Palladium electron configuration
• Berkelium electron configuration
• Thulium electron configuration
• Samarium electron configuration