When an atom loses or gains one or more electrons, it becomes positively or negatively charged-an ion. C. Covalent Bonding 1. A covalent bond holds together two atoms that share one or more pairs of electrons. In a nonpolar covalent bond , atoms share electrons equally. D. Properties of Water 1.
Water molecules can form hydrogen bonds with each other.
Water tends to stabilize temperature because it can absorb considerable heat before its temperature changes. This is an important property in evaporative and freezing processes.