In an ionic bond: a. one atom accepts electrons from another. b. the atoms swap electrons. c. both atoms share their electrons. d. the atoms attract each other but their electrons do not interact.

Which of the following is not a characteristic of a hydrogen bond? 1. it is responsible for the unusual physical properties of water. 2. it is weaker than a covalent bond. 3. it is stronger than other dipole-dipole interactions. 4. it can occur when hydrogen is covalently bound to very electronegative elements liks f, cl, br and i.