Write the electronic configuration for Calcium

Answer: The Ca atom has a total of 20 electrons. As a result, the electron configuration of Calcium will be 1s²2s²2p⁶3s²3p⁶4s².

Calcium’s initial two electrons would be in the 1s orbital. Calcium’s following valence electron will be in the 2s orbital.

All six electrons after that will be there in 2p orbital. In the 3s, the next two electrons. This 3p orbit is filled with six electrons because it can accommodate that many in the shell.

The two electrons that remain are subsequently moved to the 4s orbital.

•  Calcium belongs to the A group of the s-II block. Calcium has a 20th atomic number, indicating that it possesses 20 protons.
•  Calcium has the same amount of protons and electrons, thus the total number of protons and electrons is 20