Valence electrons:
- “The electrons present in the outermost shell of an atom are known as the valence electrons.”
- “Valency is the combining capacity of an atom.”
for example
- Consider, Lithium atom which has an atomic number , the electronic configuration of the Lithium atom is .
- The number of the valence electron in Lithium is .
The schematic atomic structure of Lithium is given below:
![](https://byjus-answer-creation.s3.amazonaws.com/uploads/3366Chemistry_62a2fff26f0ff86f3fd8ab00.jpg_img_upload_solution_2022-07-05 14:31:21.382185.png)