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23 Nov 2019
1. A radioactivePhosphorus nucleus with Atomicnumber 15 and mass number32,
beta decays by emittingan Electron and anAntineutrino. (The above isotope of
Phosphorus has a mass ofm=31.973u)
a. What is the atomicnumber and mass number of thedaughter nucleus?
(3 points)
b. What element is thedaughter nucleus?(2points)
c. What is the restEnergy of the Phosphorus nucleusin eV? (1u=931.5MeV)
(3 points)
d. If the maximum energy of the emitted Electronis1.7MeV, what is the
atomic mass of the daughter nucleus in atomicmassunits u?Assume that
the antineutrino has negligible kinetic energyandmass. The daughter
nucleushas zero speed after the decay. (2 points)
1. A radioactivePhosphorus nucleus with Atomicnumber 15 and mass number32,
beta decays by emittingan Electron and anAntineutrino. (The above isotope of
Phosphorus has a mass ofm=31.973u)
a. What is the atomicnumber and mass number of thedaughter nucleus?
(3 points)
b. What element is thedaughter nucleus?(2points)
c. What is the restEnergy of the Phosphorus nucleusin eV? (1u=931.5MeV)
(3 points)
d. If the maximum energy of the emitted Electronis1.7MeV, what is the
atomic mass of the daughter nucleus in atomicmassunits u?Assume that
the antineutrino has negligible kinetic energyandmass. The daughter
nucleushas zero speed after the decay. (2 points)