Question

2. Which of the following ions is not a mono atomic ?
Sulphide
Oxide
Carbonate
Flouride​

Answer 1

Answer:

Oxide

I think it is the correct answer

Answer 2

Answer:

Flouride ions is not monoatomic.

while Sulphide :- S^-2

Oxide:- O^-2

Carbonate:- CO3^-2

But Fluoride :- F^-1

I hope you understand.

Thanks for asking