|The smallest parts that make up all matter
|There are over how many different kinds of atoms in the universe?
|What are the three parts of an atom?
||proton, neutron, electron
|What type of charge does a proton have?
|The number of _____________ in the nucleus defines the atom.
|What type of charge does a neutron have?
|What atom part moves around the nucleus of an atom?
|What type of charge does an electron have?
|The number of ______________ is equal to the number of ______________ in the nucleus.