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Distinguish between atoms and molecules.

Atom smallest unit of element that maintains properties of the element.
Elements substance that cannot be broken down or seperated in smaller substances.
Nucleus Atoms central region, made of protons and neutrons.
Proton subatomic particle that has a positive charge and that is found in the nucleus of an atom.
Neutron subatomic particle that has no charge and that is found in the nucleus of an atom.
Electron subatomic particle that has a negative charge.
Atomic Number The number of protons in the nucleus of an atom, the atomic number is the same for all atoms of an element.
Neutral having no overall change.
Atomic Mass mass of an atom that describes in atomic mass units.
Chemical Symbol a one or two letter code that represents an element.
Created by: 84IanOli