Question

Name in the following:

The arrangement of electrons in different shells around the nucleus.

Answer 1

• Electronic Configuration is defined as the arrangement of electrons in different shells around the nucleus.
• The shells are also known as orbits and are represented either by numbers 1, 2, 3, 4,… or letters K, L, M, N,….
• For example, the atomic number of oxygen $\left(\mathrm{O}\right)$ is 8, so its electronic configuration is 2,6.

Hence, the arrangement of electrons in different shells around the nucleus is called electronic configuration.