Essential Chemistry for IGCSE - Structure And Bonding (Section 3 - No. 20)
Which of the following pairs of elements would most likely form an ionic bond?
Carbon and Oxygen
Hydrogen and Oxygen
Sodium and Chlorine
Chlorine and Chlorine
Explanation
Ionic bonds form between a metal and a nonmetal. Sodium and Chlorine are a metal and a nonmetal, respectively.
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