Mixture - two or more types of atoms not chemically bonded, Atoms - the smallest thing, Element - one type of atom, Compound - two or more types of atoms chemically bonded, Nucleus - The centre of an atom, Protons - Part of a nucleus which has a positive , Neutrons - Part of a nucleus which does not have a charge, Electrons - Negative charged and orbit the nuncleus,

Atoms, Elements and Compounds

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