Question

what leads to the formation of a covalent bond?
a. the transfer of electrons
b. the sharing of an electron pair
c. the transfer of protons
d. the sharing of a proton pair

Explanation:

Covalent bonds form when atoms share electron pairs to achieve a stable electron - configuration. Transfer of electrons forms ionic bonds, and protons are not involved in bond - formation in the ways described in options C and D.

Answer:

B. the sharing of an electron pair