Question

halogens

A. Group 1 elements
B. elements that make up the f -block
C. elements of the s and p-blocks
D. Group 17 elements
E. entire set of d-block elements

Answer 1

D. group 17 elements

Answer 2

The answer is directly the group 17 elements. Those are the ones that begin with Fluorine and Chlorine. They head the group of Halogens. Go down to see the next two -- Bromine (Br) and Iodine(I). All four are halogens. Whatever is in column 17 is a halogen.