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s8p1.a

distinguish between atoms and molecules

TermDefinition
Atoms- the smallest unit of an element that maintains the properties of that element.
Element- a substances that cannot be separated or broken down into simpler substances by chemical means.
Nucleus- in physical science, an atom's 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 a element
Neutral- having no overall charge
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: _demondriaa
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