What is valency of Chlorine?

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Sia ? 6 years, 4 months ago
The atomic number of chlorine is 17. The electronic configuration is 2, 8, 7.
So the number of valence electrons for chlorine is 7 and it needs 1 more electron to complete its octet (8 electrons in its outermost shell).
Therefore, its valency is one (8 - 7).
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