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chapter 3

TermDefinition
matter everything that has mass and takes up space
element ingredients makes up all other substances. can not be broken down into other substances.
metals good conductors of electricity and heat. can bend without breaking. most have a gray color
nonmetals do not conduct heat or electricity very well. may be a gas or solid
semimetals sometimes like metals sometimes like nonmetals.
atom the smallest part of an element that still acts like that element.
atomic theory states that everything is made of atoms
compound a type of matter made of two or more elements.
molecule smallest particle of a compound that still acts like that element
proton positive charge. found in middle
nuetron no charge. found in the nucleolus
electron negative charge. orbits the nucleolus
Created by: alexc20
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