Question

Will $_{35}Cl$ and $_{37}Cl$ have different Valencies? Justify your Answer...

Answer 1

Answer :-

No...

$_{35}Cl$ and $_{37}Cl$ have the Same Valency. $_{35}Cl$ and $_{37}Cl$ are Isotopes.

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So, they have the Same Number of Protons and Electrons and have the Same Atomic Number, (i.e.), 17.

Hence, their Electronic Configuration and Valencies are also the Same...

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Electronic Configuration = 2, 8, 7

Valency = 8 - 7 = 1

∴ Both of them have the Same Valency = 1

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