Radioactivity, energy from nucleus
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Radioactivity | process by which an unstable nucleus gives off nuclear radiation
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Mass number | protons + neutrons
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Isotope | Atoms with different numbers of neutrons
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Alpha particle | stopped by paper or clothing
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Beta particle | stopped by 3mm of aluminum
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Gamma ray | stopped by lead or a few meters of concrete
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Half-life | time needed for half of a sample of radioactive substance to undergo radioactive decay
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Good uses of radioactivity | treat & prevent illness, can detect defects in structures
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Nuclear fission | process where nucleus splits into two nuclei
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Nuclear chain reaction | continuous series of nuclear fission reactions
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Nuclear fusion | process where smaller nuclei combine into one larger nuclei
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Disadvantages of fission | nuclear bomb, Chernobyl meltdown, radiation exposure
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Disadvantages of fusion | costly, expensive research
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Advantages of fission | electricity
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Created by:
jamred86
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