Question

which statement best describes the particle diagram below? this is a mixture of isotopes. this is a mixture of molecules/compounds. this is a mixture of elements and molecules/compounds. this is a pure sample of one element.

Explanation:

Isotopes are different forms of the same element with the same number of protons but different numbers of neutrons and are not represented here. The diagram shows different types of molecules/compounds as there are distinct combinations of atoms bonded together, not individual elements alone. A pure - sample of one element would consist of only one type of atom, which is not the case. So, it is a mixture of molecules/compounds.

Answer:

This is a mixture of molecules/compounds.