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chapter 3

TermDefinition
matter Everything that has mass and takes up space
element the ingredients that has makes up all substances cant be broken down into other substances
metals good conductors of electricity and heat can bend without breaking most have a grey
nonmetals do not conduct heat electricity very well may be a gas or a solid
semi-metal sometimes like metal and sometimes like nonmetal
atoms the smallest part that still acts like that element
atomic theory states that every thing is metal
compound a type thats made with 2 or more elements
molecule smallest particle of a compound that still acts like a compound
proton positive charge found in the nuclius
neutron no charge found in the nuclius
electron negative charge orbits the nuclius
LIQUID Definite volume but not shape, particles can move past each other. Takes shape of container
solid Has a definite shape and volume. Particles are very close together, and don’t move past each other. Keeps shape
gas No definite volume or shape. Particles spread out evenly and take shape of container. Can be squeezed into smaller volume
plasma Like a gas, but conducts electricity like a metal. Occurs with high temps or electric charge.
melting point When solid to liquid or liquid to solid. Same temp as freezing point.
evaporation when liquid becomes a gas
codensation When gas become a liquid. Gas particles touch a cold surface and the temperature drops
Created by: laurel-masterson
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