Question

lewis structures for covalent compounds involve the —— of —— electrons?
transfer, negative
sharing, nucleus
sharing, valence
transfer, valence

Explanation:

Covalent compounds are formed by the sharing of electrons. These electrons are valence electrons, which are the outermost electrons of an atom involved in chemical bonding. Transfer of electrons occurs in ionic compounds. Nucleus is not involved in electron - sharing in covalent bonding.

Answer:

Sharing, valence