definitions


 * __Important Terms __**

Here are some important terms you will need to know before you complete the project. You can find the definitions in your textbook in Chapter 5 or on the internet.


 * 1) **  Atomic Number  **
 * 2) **  Mass Number  **
 * 3) **  Ion  **
 * 4) **  Isotope  **
 * 1) **  Isotope  **