Amolecule of chlorine has atoms of the same element, and a molecule of carbon dioxide has different kinds of atoms. based on this information, chlorine is and carbon dioxide is .

Chlorine is an element and carbon dioxide is a compound

Based on the information, chlorine is an element while carbon dioxide is a compound.

Element:

              The element is a molecule which contains two or more same atoms. As in the case of Cl2 molecule, it has two chlorine atoms.

Compound:

                   The compound is a molecule which contains two or more atoms of different types. As in the case of CO2, it contains carbon and oxygen atoms which are two different atoms.

2b2t

explanation:

2b2t