| A | B |
|---|
| radioactivity | the release of energy and particles from the nucleus |
| radiation | the energy and particles that are released as an atom decays |
| transmutation | a radioactive atom releases particles from the nucleus causing the atom to change into an atom of another element |
| alpha particle | 2 protons and 2 nuetrons that are released from the nucleus during radioactive decay |
| beta particles | the release of a high energy electron from the nucleus during radioactive decay |
| half-life | the time it takes for one half of a sample of radioactive nuclei to decay |
| half life of carbon 14 | 5730 years |
| half life of iodine 131 | 8 days |
| half life of uranium 238 | 4.5 billion years |
| use for carbom 14 | to find the age of fossils |
| use for iodine 131 | to detect and treat thyroid problems |
| how shouls nuclear waste be stored? | stored in a place where they will not leak into the environment |
| mass number | the number of protons and nuetrons in the nucleis |
| atomic number | the number of protons in the nucleus |
| strong nuclear force | the force that keeps the protons in the nucleus. the neutrons act like glue and go inbetween the protons. |
