Question

to what group do oxygen, nitrogen, and sulfur belong?
halogens
alkali metals
nonmetals
alkaline earth metals

Explanation:

Oxygen, nitrogen, and sulfur do not exhibit metallic properties like conductivity or malleability. Halogens are elements like fluorine, chlorine etc. Alkali metals are elements like sodium, potassium etc. Alkaline - earth metals are elements like calcium, magnesium etc. Non - metals are elements that lack metallic characteristics and oxygen, nitrogen, and sulfur fall into this category.

Answer:

C. nonmetals