Question

topic5 d4 assessment periodic table
3 of 42

1. halogens are good disinfectants. which of the following is a halogen?

o a. o
o fe
o a. n
o a. cl

Explanation:

Halogens are elements in Group 17 of the periodic table. Chlorine (Cl) is in Group 17. Oxygen (O) is in Group 16, iron (Fe) is a transition metal, and nitrogen (N) is in Group 15.

Answer:

D. Cl