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S8P1.a

Distinguish between...

TermDefinition
1. Atom the smallest unit of an element that maintains the properties of that element
2. Element A substance that cannot be broken down or separated into simpler substances by chemical means
3. Nucleus In physical science an atoms central region, which is made up of protons neutrons
4. Proton A subatomic particle that has a positive charge and is found in a nucleus of an atom
5. Neutron A substance particle that has no charge and is found in a nucleus of an atom
6. Electron A subatomic particle that has a negative charge
7. Atomic Number the number of protons in the nucleus of an atom;the atomic number is the same for an atom of an element
8. Neutral having no overall change
9. Atomic Mass the mass expressed of an atom in atomic mass units
10. chemical Symbol one of two letter code that represents an element
Created by: 29KAHLEW
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