(a) What are nucleons and their types? How are those held together in a tiny nucleus despite the intense repulsive Coulomb force among the protons?
(b) Estimate the nuclear radii of the 4He and 238U, given that R0 = 1.2 fm (= 10^-15 m)
(c) Define "fission" and "fusion" reactions?
(d) What is nuclear reaction? Define and provide various examples