Matter and its Properties

By: Caanon Gibbons

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Terms and Definitions

Matter - anything that has mass and takes up space

Mixtures - two or more substances which have been combined such that each substance retains its own chemical identity

Homogeneous - mixture where the components that make up the mixture are uniformly distributed throughout the mixture; the composition of the mixture is the same

Heterogeneous - a mixture where the components of the mixture are not uniform or have localized regions with different properties; different samples from the mixture are not identical to each other

Pure Substances - a material that has constant composition and has consistent properties throughout the sample

Compounds - a chemical species that is formed when two or more atoms join together chemically

Elements - a substance that cannot be broken down by chemical means; elements are defined by the number of protons they possess.

Atoms - the defining structure of an element, which can't broken by any chemical means. A typical atom consists of a nucleus of protons and neutrons with electrons orbiting this nucleus.

Molecules - refers to two or more atoms which have chemically combined to make a single species