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Chp.1.3-UnitD

the periodic table is a map of the elements

QuestionAnswer
reactive likely to undergo a chemical change
metal an element that tends to be shiny, easily shaped, and a good conductor of electricity and heat
nonmetal an element that is not a metal and has properties generally opposite to those of a metal
metalloid an element that has properties of both metals and nonmetals
radioactivity the process by which the nucleus of an atom of an element releases energy and particles
half-life the length of time it takes for half of the atoms in a sample of a radioactive element to decay into atoms of another element
Created by: swimstar
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