Question

what do you think are some rules that apply in filling up the orbitals for the elements from number 1 to 18

Answer 1

Electron configuration is how electrons are distributed in the different orbitals around the nucleus of an atom. The filling of electrons starts from a lower energy level to the highest energy level. The region of space around the nucleus where the electron is most likely to be found is called an atomic orbital. Some of the rules are:

1. An electron is represented by a spin.

2. Filling the orbitals should start with the lowest energy level.

3. One electron should be present in the same sub-level before pairing.

4. A maximum number of two electrons can be present in an orbital.