Question

unit 3 comprehensive quiz e
possible points 5
a sample composed only of atoms having the same atomic number is classified as
a compound
a mixture
an element
a solution

Explanation:

Elements are defined as substances made up of atoms with the same atomic number. Compounds are made of different - element atoms chemically bonded. Mixtures are combinations of different substances. Solutions are homogeneous mixtures.

Answer:

C. an element