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Chapter 16 vocab

Atomic Energy

QuestionAnswer
Radioactivity The process by which an unstable nuclear gives off nuclear radiation.
Mass Number The sum of the numbers of protons and nuetrons in the nucleus of an atom.
Half-life The time needed for half of a sample of a radioactive substance to undergo radioactive decay.
Nuclear Fission The splitting of the nucleus of a large atom into two or more fragments; releases additional neutrons and energy
Nuclear Chain Reaction A continuous series of nuclear fission reactions
Nuclear Fusion The combination of nuclei of small atoms to form a larger nucleus; realeases energy
Created by: sunshine3825
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