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A Beryllium-8 Nucleus at Rest Undergoes Double Alpha Decay as Follows

Question 76

Multiple Choice

A beryllium-8 nucleus at rest undergoes double alpha decay as follows: 48{}^{8}_{4} Be → 24{}^{4}_{2} He + 24{}^{4}_{2} He The known atomic masses are: 24{}^{4}_{2} He: 4.002603 u 48{}^{8}_{4} Be: 8.005305 u
What is the kinetic energy of each departing alpha particle? (1 u = 931.5 MeV/c2)


A) 46 keV
B) 65 keV
C) 92 keV
D) 130 keV
E) 180 keV

Correct Answer:

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