Atoms are the basic building blocks of matter that make up everyday objects. A desk, the air, even you are made up of atoms!
Atoms are composed of three type of particle namely protons, neutrons, and electron. Protons and neutrons are responsible for most of the atomic mass e.g in a 150 person 149 lbs, 15 oz are protons and neutrons while only 1 oz. is electrons. The mass of an electron is very small (9.108 X 10-28 grams). Both the protons and neutrons reside in the nucleus of an atom and is represented in the figure below..
Find below the atom symbol with details on the elements of atom.
Protons have a postive (+) charge, neutrons have no charge --they are neutral. Electrons reside in orbitals around the nucleus. They have a negative charge (-).
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