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Element
A substance that cannot be broken down by chemical means
Atom
One unit of an element
Molecules
Contains two or more atoms
Compound
Contains two or more different atoms
Molecular Compounds
Contains two or more non-metals
Ionic compounds
Between a metal and a non-metal
Ions
Charged particles
Cations
Positively charged ions
Anions
Negatively charged ions
Mixtures
Contains 2 or more compounds Ex. Salt & Sugar
Homogeneous
Looks the same throughout
Heterogeneous
Different phases are shown
