| 1-2 of 2Flashcard sets with a 'radioactive isotope' term meaning 'nucleus breaks down over time, giving off radiation in the form of matter and energy' | |||
|---|---|---|---|
| # | Title | Terms | Date |
| 1 | Biology Chapter Fourby kschuster | 34 terms | October 4, 2009 |
| 2 | Biology Final Ch 4by beckns16 | 30 terms | June 1, 2008 |