Question

what do you understand by valence electrons

Answer 1

Hey !

I would be glad answering that !

I means to state the number of electrons the outermost layer of the atom of the element has. It ranges from 0 - 8. If there are 8 valence electrons in the atom, it is said to complete its octet.

Hope i helped you !

Answer 2

the number of electrons in the outermost energy shell of an atom .