Basic Chemistry Terms

Front

Smallest unit of matter

Back

atom

Front

Center of an atom

Back

nucleus

Front

Positively charged particle

Back

proton

Front

Neutral particle in the nucleus

Back

neutron

Front

Negatively charged particle

Back

electron

Front

Pure substance of one type of atom

Back

element

Front

Atoms with the same number of protons but different neutrons

Back

isotope

Front

Substance of two or more elements

Back

compound

Front

Charged atom or molecule

Back

ion

Front

Attraction between oppositely charged ions

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ionic bond