A radioactive Phosphorus nucleus by Atomic number 15 and mass number32, beta decays by emitting an Electron and an Antineutrino. (The above isotope of Phosphorus has a mass of m=31.973u)
1. What is the atomic number and mass number of the daughter nucleus?
2. What element is the daughter nucleus?
3. What is the rest Energy of the Phosphorus nucleus in eV? (1u=931.5MeV)
4. If the maximum energy of the emitted Electron is 1.7MeV, what is the atomic mass of the daughter nucleus in atomic mass units u? Suppose that the antineutrino has negligible kinetic energy and mass. The daughter nucleus has zero speed after the decay.