Question

Matter composed of a single type of atom is known as a(n) A) mineral.

B) electron.
C) molecule.
D) compound.
E) element.

Answer 1

An element is pure matter that is composed of only one type of atom.

Step-by-step explanation:

An element is pure matter that is composed of only one type of atom. It is a fundamental building block of matter and cannot be separated into simpler substances by physical or chemical means. Examples of elements include oxygen, hydrogen, and carbon.