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P.S. Chpt. 16

Physical Science Vocab Cards for Mr.Morrison

QuestionAnswer
the process by which an unstable nucleus gives off nuclear radiation radioactivity
the sum of numbers of protons and neutrons in the nucleus of an atom mass number
who first discovered radioactivity Henri Becquerel
who died from radioactivity Marie Curie
an atom that has the same number of protons as other atoms of the same element but with a different number of neutrons isotope
the release of _________ particles in a nucleus alpha/beta/gamma decay
the amount of time needed for half a sample of a radioactive substance to go through radioactive decay half-life
Created by: leannejones
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