Question

Name the following:

The electrons present in the outermost shell.

Answer 1

• Valence electrons are the electrons present in the outermost shell.
• The chemical properties of an element are based on the number of electrons present in its valence or outermost shell.
• For example, the electronic configuration of oxygen $\left(\mathrm{O}\right)$ having atomic number 8 is 2,6. So, oxygen has 6 valence electrons.

Hence, the electrons present in the outermost shell are called valence electrons.