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Atomic Energy

Chapter 16, 8th grade

QuestionAnswer
Radioactivity The process by which an unstable nucleus gives off nuclear radiation.
Mass Number The sum of the number of protons and neutrons in the nucleus of an atom
Isotope An atom that has the same number of protons (or the same atomic number) as other atoms of the same element do but that has a different number of neutrons (and thus a different atomic mass)
Half-life Is the amount of time it takes one-half of the nuclei of a radioactive isotope to decay
Nuclear Fission Is the process by which a large nucleus splits into two small nuclei and releases energy
Nuclear Chain Reaction A continuous series of nuclear fission reactions
Nuclear Fusion The combination of the nuclei of small atoms to form a larger nucleus; releases energy
Created by: Jacob Salaj Jacob Salaj on 2010-02-10



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