Question

which nonmetals have similar chemical properties? check all that apply.
sulfur
nitrogen
selenium
oxygen
carbon
fluorine

Explanation:

Elements in the same group of the periodic table have similar chemical properties. Sulfur (S), selenium (Se), and oxygen (O) are all in Group 16 (the chalcogens) of the periodic table. Nitrogen is in Group 15, carbon in Group 14, and fluorine in Group 17, so they don't have similar properties to the Group 16 nonmetals here. So sulfur, selenium, and oxygen have similar chemical properties.

Answer:

A. sulfur, C. selenium, D. oxygen