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

Answer;

Sulfur, selenium, oxygen

Explanation;Sulfur, selenium, and oxygen are non-metals that have similar chemical properties. They belong to a group called the oxygen family. Oxygen family is composed of elements oxygen, sulfur, tellurium, selenium and polonium. Each element in this family has six valence electrons in the outermost energy level. They therefore require two electrons to acquire a stable configuration or octet configuration. Thus, they have a valency of two.