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Matter anything that has mass and takes up space (volume)
Atoms the basic building blocks of matter; smallest particle of an element
Proton a positively charged particle found in the nucleus of the atom
Neutron a particle with no charge, found in the nucleus of the atom
Electron a negatively charged subatomic particle that is located outside the nucleus of an atom
nucleus the center of the atom, contains protons and neutrons
atomic number the number of protons in the nucleus of the atom
atomic mass a measure of an atom's mass
chemical symbol a code, usually made up of one or two letters, used to represent an element
compound a pure substance that forms when two or more elements join chemically in a fixed proportion
chemical formula a group of chemical symbols and numbers that shows the number of atoms of each element in a molecule
subscript a number that tells how man atoms of each element are in a molecule
Created by: ccole_ecps.us