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6.5A Elements and Compounds

Atom Smallest particle of an element, made of electrons, protons, & neutrons.
Element Pure substance composed of the same type of atom throughout.
Compound Substance made of 2 or more elements that are chemically combined in fixed amounts.
Substance Any form of matter that is uniform throughout & has consistent properties.
Periodic Table of Elements Table in which all the known elements are arranged by properties & are represented by 1 or 2 letters, referred to as chemical symbols.
Matter Anything that has mass & takes up space.
Properties Physical & chemical characteristics of matter used to describe or identify a substance.
Volume Measure of the space that matter occupies.
Mass Measure of how much matter is present in a substance.
Mixture Combination of 2 or more substances which do not chemically combine.
Uniform Composition Made of the same evenly distributed substance or combination of substances throughout; uni = one