Question

what is meant by valency of an element what is the relationship between the number of valence electron and valency​

Answer 1

Answer:

valency is the number of electrons present in the last shell of an element..

and valency of an element is how electrons it could bear in last shell if it had more capacity but less electron or it had a capacity to donate electrons..

to make itself stable..

valence electron number of electron have in it last shell..

Answer 2

The number of electrons in an atom is always the same as the number of protons, so atoms are electrically neutral over all. Atoms can loss or gain electrons. If an atom gains one or more electrons, it becomes a negativity changed ions.