of the basic building blocks in the universe for matter is the
atom. All matter - gas, liquid, or solid - is made up of molecules
or atoms joined together. These atoms are the smallest particle
into which an element or substance can be divided without losing
A single atom consists of three basic components: a proton, a
neutron, and an electron.
the atom there is a Nucleus. The Nucleus contains the protons
and neutrons. Orbiting around the nucleus are the electrons.
atom is similar to a miniature solar system. As with the sun in
the center of the universe, the nucleus is in the center of the
atom. Protons and Neutrons are contained inside the nucleus. Orbiting
around the nucleus are the electrons.