Atomic Structure and Radioactivity Pretest...

     We recently took the Atomic Structure and Radioactivity Unit Pretest. It was difficult because I do not yet understand any of the fusing, fission, bonding, etc rules. Although we touched on half-lives way back when in physical science, I think I did alright on some of those questions. I still need a refresher before a final grade. Can't wait to learn more about this unit, it will be a good one!