Question

Which of the following is NOT a diatomic element?

a. helium
b. iodine
c. oxygen
d. hydrogen

Answer 1

The diatomic elements are: Bromine, Iodine, Nitrogen, Chlorine, Hydrogen, Oxygen, and Fluorine.

So the answer to your question is A, helium.

Answer 2

Its A Helium hope i helppp