Science: what are atoms where can they be found?

atoms make up every single living thing on earth.

atoms can be found in/on any living thing on earth

An atom a fundamental piece of matter ... An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud.

The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud.