Are the elements with valency 4 metalloids or non metals - Science - Periodic Classification of Elements

Question

Are the elements with valency 4 metalloids or non metals?

Garima Gupta · Accepted Answer

they are metalloids except carbon and silicon this is because as we
go down the group the size of the atom increases so it can lose as
well as gain For understanding it clearly u can go through S,P,D,F
RULE for filling the shell