A stable subatomic particle with a positive eletric charge
Proton
Measure of how much matter in a object
Mass
Two or more people who interact with one another and share similar characteristics
Groups
Substance that undergoes a change
Reactants
Subatomic particle that has a neutral charge
Neutron
Brain or control center for the cell
Nucleus
A large interval of time that is meaningful in the life of a person,in history,etc.
Period
Something formed from a chemical reaction
Product
Subatomic particle that has a negative charge
Electron
Electron that goes around the nucleus of an atom
Electron cloud
Outer shell of an atom and the ones forming bonds to adjacent atoms
Valence electrons