Question

which best describes an element? a pure substance a type of a mixture a pure compound an impure substance

Explanation:

• An element is a pure substance because it cannot be broken down into simpler substances by chemical means and consists of only one type of atom.
• A mixture is a combination of two or more substances, so an element is not a mixture.
• A compound is made of two or more different elements chemically bonded, so an element is not a compound.
• An impure substance contains other substances, while an element is pure.

Answer:

a pure substance