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Chapter 3

Matter Everything that has mass and takes up space
Element The ingredients that makeup all other substances. Cant be broken down into other substances.
Metals Good conductors of electricity and heat. Can bend with out breaking. Most have gray color.
Nonmetals Don't conduct heat/electricity very well. may be gas or a solid.
Semimetals Sometimes like metals and 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 compound.
Proton Positive charge. Found in the nucleus.
Neutron No charge.found in the nucleus.
Electron Negative charge. Orbits the nucleus.
Solid Has a definite shape and volume. Particles are very close together,  and don’t move past each other. Keeps shape
liquid Definite volume but not shape, particles can move past each other.  Takes shape of container 
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 a gas.
Condensation When gas become a liquid. Gas particles touch a cold surface and the  temperature drops
Created by: Brady4824