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chapter 3 notes
| Term | Definition |
|---|---|
| matter | everything that has mass and takes up space |
| element | the ingredients that make up all other substances |
| metals | conductors of heat and electricity |
| nonmetals | do not conduct heat |
| semimetals | sometimes like metals and sometimes like nonmetals |
| atom | the smallest part of an 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 |
| proton | positive charge |
| neutron | no charge |
| electron | negative charge |
| solid | has a definite volume or shape |
| liquid | has a definite shape but not volume |
| gas | no definite volume or shape |
| plasma | like gas but conducts electricity like metal |
| melting point | Solid to liquid or liquid to solid. Same temperature as freezing poin |
| evaporation | When liquids become a gas |
| condensation | when gas becomes a liquid |
| boiling point | the temperature when evaporation accurs |
| solution | A mixture where substance spreads out evenly and will not settle |
| solute | the substance being disolved |
| solvent | What the substance is dissolved in |
| solubility | A way to measure how much a material dissolves into another |