|Which particle in an atom has a positive charge?
|Which particle in an atom has no charge?
|Which particle in an atom has a negative charge?
|Where is most of the mass of an atom found?
||In the Nucleus
|The _________is the number of protons in the nucleus of an atom of an element.
|You can identify an element if you know its atomic number or _______.
|In the periodic table, the atomic number of an element is the _________ above its symbol.
||Number of Protons
|What do atoms become if any electrons are gained or lost?