Question

Write the E.C. and valency of the chlorine and sodium.

Answer 1

Answer:

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Explanation:

The valency of chlorine is 7, there are 7 electrons present in the outermost orbit hence they are highly reactive elements. The atomic number of sodium is 11, it is a alkali metal. Its electronic configuration is 1s²2s²2p⁶3s¹. The valency of sodium is 1, there is only electron present in the outermost orbit.