What Is an Atom for Kids

The atom is the basic building block for all matter in the universe. Atoms are extremely small and are made up of a few even smaller particles. The basic particles that make up an atom are electrons, protons, and neutrons. Atoms fit together with other atoms to make up matter.

What atom is iron made of?

GeneralDensity, Hardness7874 kg/m3, 4.0Appearancelustrous metallic with a greyish tingeAtomic propertiesAtomic weight55.845 amu

Are there atoms in everything?

(Matter is anything that can be touched physically.) Everything in the universe (except energy) is made of matter, and, so, everything in the universe is made of atoms. An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons.