Question

Question #ed26e

Answer 1

The tendency to use 4 valence electrons in bonding........

Explanation:

The term is properly called `"quadrivalency"`, but I don't think the term `"tetravalent"` is going to die out very soon. Carbon, in its vast chemistry, routinely displays `"tetravalence"`, and carbon assumes oxidation states of `-IV` to `+IV`.