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Chapter 3
| Term | Definition |
|---|---|
| Matter | every thing that has mass takes up space |
| element | the ingrediants that make up all other substances can't be broken down into other substances |
| metals | good conductors of electricity and heat can bend without breaking most are gray and shiny |
| nonmetals | does not conduct heat and electricity very well may be a gas or solid |
| semimetals | sometimes like metals and sometimes like nonmetals |
| atom | the smallest part of the element that still acts like a element |
| atomic theory | states that everything is made of metal |
| compound | a type of 2 or more elements |
| molecule | smallest particle of a compound that still acts like a compound |
| proton | positive charge found in the nucleus |
| electron | negative charge orbits the nucleus |
| neutron | no charge found in the nucleus |
| solid | has a definite shape and volume,particles are very close together and can't move past each other keeps shape |
| liquid | definite volume but not shape, particles can move past each other,takes shape of container |
| 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 liquids become gas |
| condensation | when gas become a liquid gas particles become a cold surface and then temperature drops |
Created by:
mitchell-chappell
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