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Chapter 15,Section 1
Atomic Energy
| Question | Answer |
|---|---|
| The process by which an unstable nucleus gives off nuclear radiation. | radioactivity and radioactive decay |
| The three types of radioactive deacy | alpha decay, beta decay, and gamma decay |
| The release of an alpha particle from a nucleus | alpha decay |
| least penetrating, stopped by paper. Is made up of two protons and two neutrons. Has a mass number of 4 and a charge of 2+ | alpha particle |
| The sum of the numbers of prtons and neutrons in the nucleus of an atom | mass number |
| The release of a beta particle from a nucleus | beta decay |
| The electron or positron. Stopped by 3mm of aluminum | beta particle |
| The release of gamma rays from a nucleus | gamma decay |
| An atom that has the same number of protons as other atoms of the same element do but that has a different number of neutrons | isotope |
| SOme of the energy given off of alpha and beta decay is in the form of light that has a very high energy and is the highest penetrating energy that can be stopped by concrete or lead | gamma rays |
| The splitting of the nucleus of a large atom into two or more fragments; releases additional neutrons and energy | nuclear fission |
| A coniuous series of nuclear fission reactions | nuclear chain reaction |
| Huge amounts of energy that are given off very quickly | uncontrolled chain reaction |
| The energy released from the nuclei in the uranium fuel within the nuclear power plants that is used to generate electrical energy | controlled chain reactions |
Created by:
kayleejones
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