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ch. 3
ch.3
| Question | Answer |
|---|---|
| matter | something that has mass or takes up space |
| element | ingredients that make up all the other substances |
| metals | good conductor of heat and electricity. bend without breaking |
| nonmetals | not good at conductor with heat and electricity |
| semimetals | something like metal and something like nonmetal |
| atoms | smallest part of an element that still acts like a element |
| atomic theory | idea that everything is made of small particles |
| compound | type of matter made of two or more elements |
| molecules | smallest particle of compound that still acts like a compound |
| proton | positive charge. found in the nucleus |
| neutron | no charge. found in the nucleus |
| electrons | negative charge. orbit the nucleus |
| liquid | Definite volume but no space, particles can move past each other, takes shape of container |
| gas | No definite volume and no shape, particles spread out evenly and takes shape of container, can be put in smaller place |
| soild | definite shape and volume, particles are very close together, and don't move past each other, keep shape |
| plasma | Like a gas, but conduct elecricity like a metals. occurs with high temps or electric charge. |
| melting point | melting = solid to liquid |
| evaporation | when a liquid become a gas |
| condensation | when gases become liquid |
Created by:
Lauren-bailey
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