Based on the nuclear shell model and the concept of "magic numbers," which of the following nuclides — Nuclear Chemistry and Radioactivity Chemistry Question

💡 Solution & Explanation

Magic numbers for protons are 2, 8, 20, 28, 50, 82, 114. For neutrons they are 2, 8, 20, 28, 50, 126, 184, 196. ${}_{20}^{40}Ca$ has 20p, 20n (both magic). ${}_{82}^{208}Pb$ has 82p, 126n (both magic).