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chp.16 atomic energy
| Question | Answer |
|---|---|
| A french scientist whose theory was that flourescant minerals give off X rays and discovered that his experiment gave off energy, even without light. | Henri Becquerel |
| The amount of time it takes for half of a radioactive substance to go through radioactive decay. | Half-life |
| The release of an electron or positron from the nucleus. | Beta Decay |
| A type of radioactive decay that release an alpha particle from the nucleus. | Alpha Decay |
| the number of protons and nuetrons in an atom's nucleus | Mass number |
| The process named by Marie Curie when an unstable nucleus emit nuclear radiation. | Radioactivity |
| Atoms that have the same amount of protons, but not the same number of nuetrons. | Isotopes |
| When a nucleus releases a form of light that has very high energy. | Gamma decay |
| What an Alpha particle can be stopped by. | paper |
| What a beta particle can be stopped by. | Aluminum |
| What a gamma ray can be stopped by. | concrete or lead |
| Radioactive elements that can be tracked through a process or reaction. | Tracers |
| These atoms are found in all living things. | Carbon atoms |
| What particle can cause the most damage if it enters an organism? | Alpha particle |
Created by:
hallie-o
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