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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 energyof the emitted Electron is1.7MeV, what is the
atomic mass of thedaughter nucleus in atomic massunits u?Assume that
the antineutrino hasnegligible kinetic energy andmass. The daughter
nucleus has zero speedafter the decay. (2points)
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 energyof the emitted Electron is1.7MeV, what is the
atomic mass of thedaughter nucleus in atomic massunits u?Assume that
the antineutrino hasnegligible kinetic energy andmass. The daughter
nucleus has zero speedafter the decay. (2points)