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The Smallest unit of an element that maintains the properties of that element. Atom
A Subatomic particle that has a negative charge. Electron
In Physical science an atom's central region made up of protons and neutrons. Nucleus
A region around the nucleus of an atom where electrons are found. Electron Cloud
A Subatomic particle that has a positive charge and found in the nucleus. Proton
A unit of mass that describes the mass of an atom or molecule. Atomic Mass Unit
A subatomic particle with no charge, found in the nucleus. Neutron
The number of protons in the nucleus of an atom. Atomic Number
An atom that has the same number of protons as other atoms of a element. Isotope
The sum of the numbers of protons and neutrons in the nucleus of an atom. Mass Number
The mass of an atom expressed in atomic mass units. Atomic mass
Created by: Knicks0103