Atoms and Molecules

Question Answer
What is an atom? The building block of matter
What happens when atoms combine? They form different types of matter
What is an element? A substance made of only one type of atom
What is the relationship among atoms, elements, and molecules? They are all made up of atoms
What is a compound? Two or more elements that are chemically joined
Matter with a composition that is always the same Substance
A mixture in which the substances are not evenly mixed Heterogeneous mixture
Substance made of only one kind of atom Element

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