Question

Drag each label to the correct location. Each label can be used more than once. In the image, balls that look alike represent the same type of atom. The atoms have formed molecules. Identify which molecules are elements, and which are compounds.

PLEASE HELP​

Answer 1

A compound consists of two or more different elements chemically combined.

An element is made entirely from one type of atom.

For example, the top left is stated as a compound because it contains two dark atoms and one grey atom, which are both different elements chemically combined, which means it is not an element.

The bottom left is an element because it consists of two dark atoms which are the same. It is made up of one type of atom - a dark atom. Thus it cannot be a compound.