the U-238 nucleus emits a 4.2MeV alpha particle . what is the total energy released in this decay
1eV =1.602×10-19 J
4.2 MeV =4.2×106 eV
= 4.2×106×1.602×10-19 J
=6.73 ×10-13 J
Total energy released during this decay is 6.73×10-13 J
The U-238 nucleus emits a 4.2MeV alpha particle . what is the total energy released in this decay
A uranium-238 nucleus at rest undergoes radioactive decay, splitting into an alpha particle (helium nucleus) with mass 6.64×10-27 kg and a thorium nucleus with mass 3.89×10-25 kg. The measured kinetic energy of the alpha particle is 4.49×10-13 J. After the decay, what is the magnitude of the momentum of the thorium nucleus? Incorrect. Tries 1/20 Previous Tries After the decay, what is the kinetic energy of the thorium nucleus? 7.664×10-15 J You are correct. Your receipt no. is 158-4017
A uranium nucleus (mass 238 u), initially at rest, undergoes a radioactive decay. After an alpha particle ( mass 4.0 u) is emitted, the remaining nucleus is thorium (mass 234 u). If the alpha particle is moving at 0.050 times the speed of light, what is the recoil speed of the thorium nucleus?
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An atomic nucleus initially moving at 390 m/s emits an alpha particle in the direction of its velocity, and the remaining nucleus slows to 280 m/s . If the alpha particle has a mass of 4.0 u and the original nucleus has a mass of 222 u, what speed does the alpha particle have when it is emitted? Express your answer to two significant figures and include the appropriate units.
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A 23892U nucleus emits an α particle with kinetic energy =4.20MeV. What is the daughter nucleus? Express your answer as an isotope. 23490Th SubmitPrevious Answers What is the approximate atomic mass (in u) of the daughter atom? Ignore recoil of the daughter nucleus.
An atomic nucleus initially moving at 390 m/s emits an alpha particle in the direction of its velocity, and the remaining nucleus slows to 250 m/s . Part A If the alpha particle has a mass of 4.0 u and the original nucleus has a mass of 222 u , what speed does the alpha particle have when it is emitted? Express your answer to two significant figures and include the appropriate units. v ′ α v α ′ =...
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