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ch 16 ps vocab cards

atomic energy cards by alex yachem

QuestionAnswer
the process by which an unstable nucleus gives off nucleur radiation radioactivity
the sum of the numbers of protons and neutrons in the nucleus of an atom mass number
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
the time it takes for half of a sample of a radioactive substance to undergo radioactive decay half-life
the splitting of an atom into two smaller fragments releasing addittional neutrons and energy nucleur fission
a continuous series of nucleur fission reactions nucleur chain reaction
the combination of the nuclei of small atoms to form a larger nucleus releasing energy nucleur fusion
Created by: alexy23
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