Physical Science Chapter 2 Section 1

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atom

compound

element

matter

molecule

pure substance

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a particle consisting of two or more atoms chemically tied together

the smallest particle into which an element can be divided and still be the same substance

a pure substance consisting of atoms of two or more elements that are chemically combined in a fixed proportion

a pure substance that can't be broken down into simpler substances by physical or chemical means

a substance of constant composition that possesses definite qualities

anything that has mass and takes up space


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