Correct answer: B – Ionic bond When sodium (Na) bonds with chlorine (Cl), an electron is transferred from sodium to chlorine. Sodium becomes a positive ion (Na⁺), and chlorine becomes a negative ion (Cl⁻). These oppositely charged ions are held together by electrostatic force, forming an ionic bond.Ionic bond: between metal and non-metal, involves transfer of electronsExample: NaCl (table salt) is a classic ionic compound