Question

A substance is composed of only one kind of atom and can't be separated into simpler substances or converted into another substance by chemical processes. Under which category would you classify this substance?

Answer 1

The substance most likely is an inert element because it is only composed of one kind of atom and cant be separated further. Also, it cannot be converted to another type of substance. An inert material doesn't react to any substance. Examples are Neon and Krypton.