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18 Cards in this Set
- Front
- Back
- 3rd side (hint)
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The largest, slowest, & least penetrating form of radiation.
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What is an Alpha Particle?
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Symbol = 4/2 He,a; Charge = 2+ ; Mass = 4
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A negatively charged electron or positively charged positron emitted from a decaying atomic nucleus; move faster, penetrate more matter than alpha particles
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What is a Beta Particle?
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Symbol = 0/-1 e b, Charge =1-
& Mass = 0 |
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A method of detecting & monitoring paths of nuclear particles which holds a superheated liquid that doesn't boil due to increased pressure in system and a moving particle leaves
ions behind it shows a track of bubbles in its path. |
What is a Bubble Chamber?
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when a moving particle leaves ions behind & leaves a path of bubbles in its path
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A continuing series of fission reactions in which neutrons from fissioning nuclei cause other nuclei to split releasing more neutrons
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What is a Chain Reaction?
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fission domino effect
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A device in which the formation of chains of dropplets on ions generated by passage of charged subatomic particles, to infer the presence of neutral particles & study cetain nuclear reactions.
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What is a Cloud Chamber?
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a device helping to detect, infer the presence of neutral particle & study nuclear reactions.
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An electromagetic radiation emitted by radioactive decay, and having energies in a range overlapping that of the highest energy, x-rays
extending it to several hundred thousand electron volts. |
What is a Gamma Ray?
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The time necessary for half the nuclei in a sample of a specific isotropic speciesto undergo radioactive decaky.
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What is Half - Life?
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A nuclear reaction in which an atomic nucleus splits into fragment, usually 2 fragments of same mass = approx. 100Million / several Million elec. volts of energy
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What is Nuclear Fission?
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A nuclear reaction in which
nuclei combine to for more massive nuclei with the release of energy . |
What is Nuclear Fusion
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Nuclide
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An atomic nucleus specified by its atomic number, atomic mass and energy state.
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The analysis of emitted nuclear energy ( i.e.,betta particles, gamma rays)can reveal brain tumors in humans.
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What is P.E.T? ( Positron Emission Tomography ).
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A type of nuclear medicine used to diagnose tumors
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Spontaneos emission of radiation either directly from unstable atomic nuclei or as a consequence of a nuclear reaction
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What is Radioactivity?
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An identifiable substance, as a dye or radioactive isotope, that can be followed through the course of a mechanical/biological process, providing information on the pattern of events in the process or in the redistribution of the parts or elements involved.
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What is a Tracer?
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The act of changing from one nature, form, substance, or state into another by a series of nuclear reactions.
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What is Transmutation?
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The emission and propagation of waves or particles, or light, sound, radiant heat or particles emitted by radioactivity.
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What is a Nuclear Reaction?
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The release of a high- energy neutron by some neutron-rich
nuclei during radioactive decay. |
What is Neutron Emission?
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The smallest mass of a fissionable material that will
sustain a nuclear chain reaction. |
What is Critical Mass?
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The nuclear radiation that arises naturally from cosmic rays and from radioactive isotopes in the soil and air.
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What is Background Radiation?
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