Nuclei differ in their stability, and some are so unstable
Chapter 2, Problem 2.154(choose chapter or problem)
Nuclei differ in their stability, and some are so unstable that they undergo radioactive decay. The ratio of the number of neutrons to number of protons (N/Z) in a nucleus correlates with its stability. Calculate the N/Z ratio for (a) 144Sm; (b) 56Fe; (c) 20Ne; (d) 107Ag. (e) The radioactive isotope 238U decays in a series of nuclear reactions that includes another uranium isotope, 234U, and three lead isotopes, 214Pb, 210Pb, and 206Pb. How many neutrons, protons, and electrons are in each of these five isotopes?
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