A chlorine atom reacts with a sodium atom to form sodium chloride, NaCl A chlorine atom can also react with another chlonne atom to form a chlorine molecule, Cl2, Which statement BEST explains the behavior of chlorine in these two reactions? A chlorine atom con forma covalent bond with another atom by sharing electrons A chlorine atom can form an ionic bond with another atom by accepting an electron A chlorine atom Can form ionic bonds by accepting an electron and covalent bonds by sharing electrons. A chlorine atom can form ionic bonds by sharing electrons and covalent bonds by accepting an electron,