Question

A compound accepts electrons from another substance to form a covalent bond. Which term best describes this compound’s behavior?

Answer 1

The definition of a Lewis acid is a substance that accepts an electron to form a covalent bond. So, this definition directly permits you to answer the question. The term that best describes a compound that accepts electrons from another substance to form a covalent bond is Lewis acid.

Answer 2

Lewis acids describe this compound’s behavior

Step-by-step explanation:

According to Lewis's theory, a base is a substance that has an unshared pair of electrons, with which it can form a covalent bond with an atom, a molecule or an ion. An acid is a substance that can form a covalent bond by accepting a pair of electrons from the base. So, a Lewis acid-base reaction is represented by the transfer of a pair of electrons from a base to an acid, forming a covalent bond.

The reaction is:

A + :B ↔ A-B

Chemical species that function as Lewis acids include:

Molecules or atoms that have incomplete octets, several simple cations, some metal atoms and compounds that have central atoms capable of extending their valence levels.