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Match the terms to their definition.

1. atom
subatomic particle residing in the nucleus that has a neutral charge
2. compound
subatomic particle residing in the nucleus that has a positive (+) charge
3. electron
a substance composed of two or more different types of atoms
4. molecule
subatomic particle orbiting the nucleus that has a negative (-) charge
5. neutron
a unit of matter composed of two or more atoms held together by chemical bonds
6. proton
the smallest particle of matter retaining the same chemical and physical properties

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Answer:

1. Atom - the smallest particle of matter retaining the same chemical and physical properties

2. Compound - a unit of matter composed of two or more atoms held together by chemical bonds.

3. Electron - subatomic particle orbiting the nucleus that has a negative (-) charge

4. Molecule - a substance composed of two or more different types of atoms

5. Neutron - subatomic particle residing in the nucleus that has a neutral charge

6. Proton - subatomic particle residing in the nucleus that has a positive (+) charge

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