Explanation:

The distribution of the electrons among the various energy levels, shells, subshells, and orbitals is revealed by this structure.

Shell 1:

Shell 1 has just one subshell, designated as 1s.
It is made up of a single, spherical orbital called the 1s orbital, which can hold up to two electrons.
Two electrons occupy the first shell in chlorine.

Shell 2:

The second shell has the shells 2s and 2p as its subshells.
The 2s orbital, the only spherical orbital in the 2s sub-shell, has a capacity of two electrons at most.
In chlorine, there are two electrons in the 2s subshell.

Three dumbbell-shaped orbitals, designated 2px, 2py, and 2pz, make up the 2p sub-shell.
Each orbital can hold a maximum of two electrons.
The three 2p orbitals (2px2, 2py2, and 2pz1) make up the total of 6 electrons in the 2p subshell of chlorine.

Shell 3:

There are two further subshells, designated as 3s and 3p. The 3s orbital, the only spherical orbital in the 3s subshell, has a capacity of two electrons at most. In chlorine, there are two electrons in the 3s subshell. The three dumbbell-shaped orbitals that make up the 3p sub-shell—3px, 3py, and 3pz—can each carry up to two electrons each. In chlorine, the three 3p orbitals (3px2, 3py2, and 3pz1) collectively house 5 electrons in the 3p subshell.

Table for electronic configuration of chlorine

Detail for electronic configuration of chlorine in tubular form is given below:

Shell	Sub-Shell	Orbitals	Electron Configuration
1	1s	1	2
2	2s	1	2
2	2p	3	2, 5
3	3s	1	2
3	3p	5	2, 8, 7

More Electronic Configurations

Electronic configuration of fluorine

Electron configuration of chlorine
By: Prof. Dr. Fazal Rehman Shamil | Last updated: February 3, 2024