During the formation of sodium chloride,sodium atom donates one electron and this electron is accepted by chlorine atom . What is the valency of these elements ?
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This phenomenon is due to the opposite charges on each ion. In this example, the sodium atom is donating its 1 valence electron to the chlorine atom. This creates a sodium cation and a chlorine anion.
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Valency of :
Answer:
Na is +1
Cl is -1
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