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Class. of matter
Vocab
Term | Definition |
---|---|
Matter | Anything that has mass and takes up space |
Atom | the smallest particle of an element that retains the chemical identity of the element |
Molecule | a group of 2 or more atoms joined together by chemical bonds. |
Element | a pure substance that cannot be broken down into simpler substances by physical or chemical means |
Compound | a substance that contains 2 or more different elements chemically joined and has the same composition throughout |
Pure substance | a substance made up of one type of matter. (can be element or compound) has constant composition. |
Mixture | substance made up of multiple types of matter. Has variable composition. |
Homogeneous | mixture where particles are evenly distributed. |
Heterogeneous | mixture where particles are NOT evenly distributed. |