Question

The family of nonmetals having valency one. Write the names from the description

Answer 1

Great question, Thanks for asking.

The Family of Non-Metals having one valence electron are known as Halogens Family.

⇒ Group 17 Also called halogens family is the family of Non-metals having       one valence Electron.
⇒ They are highly reactive non-metals
⇒ They are one electron short to complete their octet and to become stable.
⇒ Basically high electronegative elements are known as Non-metals.

Halogens Family (Group -17) Electronic configuration 

Florine (F⁹) -------→ Electronic configuration⇒[He]2s²,2p⁵
Chlorine (Cl¹⁷)----→ Electronic configuration⇒[Ne]3s²,3p⁵
Bromine(Br³⁵)----→ Electronic configuration⇒[Ar]3d¹⁰4s²,4p⁵
Iodine(I⁵³)---------→ Electronic configuration⇒[Kr]4d¹⁰,5s²,5p⁵
Astatine (As⁸⁵)--→ Electronic configuration⇒[Xe]4f¹⁴,5d¹⁰,6s²,6p⁵

Hence  clearly mention here , All non-metals having one valence electrons belongs to Halogens family.


Hope it Helps :-)

Answer 2

florin chlorine bromine iodine