Question

Which elements have properties similar to those of chlorine (Cl)?

Responses

F, Ar, Ne
F, uppercase A lowercase r , uppercase N lowercase e

Ar, S, P
uppercase A lowercase r , S, P

Na, Mg, Al
uppercase N lowercase a , uppercase M lowercase g , uppercase A lowercase l

F, Br, I
F, uppercase B lowercase r , I

Answer 1

F, Br, I

Fluorine, bromine and iodine are halogens (Group 17) like chlorine, so they have similar chemical properties (seven valence electrons, form -1 anions, diatomic molecules, comparable reactivity trends).