Question

If you knew the number of valence electrons in a nonmental atom, how would you determine the valence of the

element?

Answer 1

To determine valency of an element you look at the number of valence electrons

with elements that have valence electrons from 1-4 they can form the same number of bods

ex: 1 valence electron = 1 bond
3 valence electron = 3 bond

With elements that have valence electrons from 5 and up they can form a number of bonds to add up to 8 electrons (octet)

ex: 5 valence electron = 3 bond (8 - # valence electron)
7 valence electron = 1 bond