Plutonium-239 decays into uranium-235 plus an alpha particle. The energy released in the process is 5.24 MeV. Given the following mass values:
, 4.002603 u;
, 235.043924 u; what is the mass value of
?
1 u = 931.494 MeV/c2.
A) 239.052157 u
B) 239.027750 u
C) 239.001889 u
D) 238.9991889 u
E) 238.988842 u
Correct Answer:
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