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Radioactive Decay, Half-Life, Nuclear Reactions

  • All radioactive decays are first order in # of radioactive nuclei

  • Half-life: t at which half original nuclei have decayed; t1/2 = 0.693/k

  • Use half-lives and k to date organic archaeological samples and rocks

  • Nuclear fusion generates the energy of the stars including the sun

  • Nuclear reactions are used to generate power in nuclear power plants; and in nuclear weapons as used in WWII

  • Nuclear power plants – major concern is storage or disposal of nuclear wastes

Radioactive Decay, Half-Life, Nuclear Reactions

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

Advanced Placement Chemistry