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S8P1.a

Distinguish between atoms and molecules.

TermDefinition
Atom the smallest unit of an element that contains the properties of an element.
Element A substance that cannot be separated or broken down by any means.
Nucleus in physical science, an atoms central region, which is made up of protons and neutrons.
Proton A subatomic particle that has a positive charge and that is found in the nucleus of an atom.
Neutron A subatomic particle that has no charge and that is found in the nucleus of an atom.
Electron A 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 The mass of an atom expressed in atomic mass units.
Chemical Symbol A one- or two-letter code that represents an element.
Created by: ScaryJoJo
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