click below
click below
Normal Size Small Size show me how
science atoms
awesome!!!!!
Term | Definition |
---|---|
matter | everything that has mass and takes up space |
element | the ingredients that make up all other substances. they can't be broken down |
metals | good conductors of electricity and heat. can bend without breaking and most metals have a grayish color |
nonmetals | they don't conduct heat or electricity very well. may be a gas or a solid. |
semimetals | sometimes conducts heat and electricity well and sometimes it doesn't. |
atom | the smallest part of an element that still acts like that element. |
atomic theory | it proves that everything is made out of atoms. |
compound | a type of matter made out of two or more elements |
molecule | the smallest part 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 around the nucleus |
solid | has a definite shape and volume. particles are very close together. Takes shape of container |
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 easily in container, can |
plasma | |
melting point | |
evaporation | |
condensation |