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Atomic Energy

Radioactivity, energy from nucleus

TermDefinition
Radioactivity process by which an unstable nucleus gives off nuclear radiation
Mass number protons + neutrons
Isotope Atoms with different numbers of neutrons
Alpha particle stopped by paper or clothing
Beta particle stopped by 3mm of aluminum
Gamma ray stopped by lead or a few meters of concrete
Half-life time needed for half of a sample of radioactive substance to undergo radioactive decay
Good uses of radioactivity treat & prevent illness, can detect defects in structures
Nuclear fission process where nucleus splits into two nuclei
Nuclear chain reaction continuous series of nuclear fission reactions
Nuclear fusion process where smaller nuclei combine into one larger nuclei
Disadvantages of fission nuclear bomb, Chernobyl meltdown, radiation exposure
Disadvantages of fusion costly, expensive research
Advantages of fission electricity
Created by: jamred86