Question

13. Give reasons: Potassium has valency one.​

Answer 1

Answer:

If potassium donates one electron and becomes potassium ion, the configuration will be 2, 8, 8. So, the number of electrons that potassium needs to donate to attain stability is 1. Therefore, the valency of potassium is 1.

Explanation:

Hope it helps you

Answer 2

Answer:

Potassium has only one electron in the outermost/valence shell which potassium can easily donate to other atoms. This is the reason for potassium having +1 valance state.