Question

valency of an element in the halogen group is??

Answer 1

Fluorine (F) is the first element in the Halogen group (group 17) in the periodic table. Its atomic number is 9 and its atomic weight is 19, and it's a gas at room temperature. It is the most electronegative element, given that it is the top element in the Halogen Group, and therefore is very reactive.

Answer 2

Valency of an element in the Halogen group is 1.
They acquired one electron to complete their Octet.