Question

one atom of sodium or one atom of potassium combine with one atom of chlorine what are the the Valencies sodium and potassium​

Answer 1

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Answer:

Valency of a sodium atom is +1 and chlorine is −1 . sodium donates its outermost electron and chlorine atom gains the same electron to complete its octet. Na+ and Cl− ions combine to form an ionic compound.

Explanation:

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Answer 2

Explanation:

we know that the valency of sodium Na is +1 and chlorine is -1 . both sodium and chlorin have to gain one electron and lose one electron respectively to achive stable outmost orbit therefore sodium donates one atom and same atom is accepted by chlorine. this is how valency is determined..