A sodium atom can react with a chlorine atom and form an ionic bond. Which statement related to their ionic bond must be true?

In an ionic bond, one atom transfers an electron to another. Sodium loses an electron and becomes a positively charged ion, while chlorine gains it and becomes a negatively charged ion; their opposite charges attract. Therefore, the statement that one atom donates an electron to the other is true. Sharing electrons describes a covalent bond, not an ionic bond.

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