Covalent bonds are characterized by:

• A. Shares Electrons
• B. Transfers Electrons
• C. Gains Protons
• D. Loses Neutrons

Answer: (A)

Covalent bonds involve sharing electrons between atoms to fill their outer electron shells and form a stable molecule. This shared electron pair is counted toward both atoms, which explains why the bond holds the atoms together. The strength and character of the bond can vary: if the atoms share electrons more equally, the bond is nonpolar; if one atom pulls electrons more strongly, the bond becomes polar.

This concept contrasts with ionic bonding, where electrons are transferred from one atom to another, creating charged ions. The other options don’t describe bonding: gaining protons would change the identity of the nucleus, which isn’t how chemical bonds form, and losing neutrons is a nuclear process, not a bonding mechanism.