Question

valency of the elements in the Halogen group is.......

Answer 1

1. as there is one electron in the outermost shell thus it gives only 1 electron gaining a positive charge
The valency of the elements contained in the halogen group is zero.
No, the valency of the elements of halogens group is 1, as they need only 1 electron to complete there octet.
halogen is the name of a group . It consists of F,Cl.Br,I. Each of Them have different valencies.
it is 1.
The group 17 of the modern periodic table is called the halogens. the elements in that group need only one electron to complete their valence shell therefore they need to accept one electron therefore their valency is 1
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Answer 2

here is your answer:
valency of halogen is -1
and they have 7 electrons in outermost shell

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