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atomic mass average mass of one atom of an element
chemical symbol one or two letter code that stand for an element many symbols are abbreviation of the elemt's name which may be english latin or greek in origin
periodic table a chart where all elements are organize into periods and groups according to there properties
period a row of elements in the periodic table arranged by atomic number
group column of elements in the periodic table in which element have certian properties in common also called chemical family
matter the material that all abjects and substances are made of anything that has mass and takes up space
element substance that are the building blocks of all matter an element is made up of atoms
compound a substance in two or more elements are chemically joined
atom smallest particle into which an elements can be divided and still have the properties of that element
electron a tiny negatively charged particle that moves around the nucleus of an atom
Created by: brennen wimbish