Valency of the elements in the halogen group is _________

one

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two

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three

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four

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Solution

The correct option is B one
Valency lavel of the elements in the halogen group is $o n e .$
Halogens belong to group `17 of periodic table and their general electronic configuration is $n s^{2} n p^{5}$ . So, they have a tendency to accept one electron to get noble gas configuration.

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Valency of the elements in the halogen group is _________

The correct option is B oneValency lavel of the elements in the halogen group is one.Halogens belong to group `17 of periodic table and their general electronic configuration is ns2np5. So, they have a tendency to accept one electron to get noble gas configuration.

The correct option is B one
Valency lavel of the elements in the halogen group is $o n e .$
Halogens belong to group `17 of periodic table and their general electronic configuration is $n s^{2} n p^{5}$ . So, they have a tendency to accept one electron to get noble gas configuration.