| A | B |
|---|
| Define an ion | elements that have lost or gained electrons |
| define polyatomic ion | group of ions possessing an overall charge |
| Define inertia | the tendency of an object to resist any change in velocity |
| Define Chemistry | studies matter and it changes |
| Kinetic energy | energy due to motion |
| homogeneous mixture | uniformed throughout |
| element | has only one kind of atom and a carbon base |
| isotopes have the same | number of electrons and protons |
| isotopes have a different number of | neutrons |
| modern periodic law says | organize by atomic number not mass |
| Pauli exclusion principle | no two electrons in an atom have the same set of quantum numbers |
| formula unit | amount of substance represented by its formula |
| coefficient | how many molecules are present |
| oxidation number | tells the charge on the element or ion |
| subscript | tells the number of individual elements in formula |
| avagrodro constant | the number of objects in a mole 6.02 x 10 to the 23 |
| superscript | the charge of an individual atom |
