Answer :
Final answer:
The reaction between sodium and chlorine is determined by their valence electrons, resulting in the formation of NaCl.
Explanation:
The reaction between sodium and chlorine is determined by the valence electrons of the atoms involved. Sodium (Na) has 1 valence electron, while chlorine (Cl) has 7 valence electrons. To achieve a stable electron configuration, sodium donates its 1 valence electron to chlorine. This results in the formation of an ionic compound, sodium chloride (NaCl).
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