Question

The most abundant isotope of uranium, 238U, decays to 234Th with a half-life of 4.468 billion years. The atomic mass of 238U is 238.050 788 u and that of 234Th is 234.043 601 u. Recall that c2 931.49 MeV/u. a) What type of particle is emitted is this decay? b) Estimate the typical kinetic energy of the emitted particle. c) How many nuclei are present in a sample of 238U with an activity of 103 Bq?

Name: the most abundant isotope of uranium 238u decays to 234th with a half life of 4468 billion years the atomic mass of 238u is 238050 788 u and that of 234th is 234043 601 u recall that c2 9314 38475
Uploaded: 2023-11-01T20:23:25-08:00
Duration: 3 min 43 s
Channel: Supreeta N
Description: the most abundant isotope of uranium 238u decays to 234th with a half life of 4468 billion years the atomic mass of 238u is 238050 788 u and that of 234th is 234043 601 u recall that c2 9314 38475

          The most abundant isotope of uranium, 238U, decays to 234Th with
a half-life of 4.468 billion years. The atomic mass of 238U is
238.050 788 u and that of 234Th is 234.043 601 u. Recall that c2
931.49 MeV/u. a) What type of particle is emitted is this decay? b)
Estimate the typical kinetic energy of the emitted particle. c) How
many nuclei are present in a sample of 238U with an activity of 103
Bq?

Added by Kathleen M.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Supreeta N

11/01/2023

Step 1

Given that the mass number is reduced by 4, the emitted particle is an alpha particle. Show more…

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The most abundant isotope of uranium, 238U, decays to 234Th with a half-life of 4.468 billion years. The atomic mass of 238U is 238.050 788 u and that of 234Th is 234.043 601 u. Recall that c2 931.49 MeV/u. a) What type of particle is emitted is this decay? b) Estimate the typical kinetic energy of the emitted particle. c) How many nuclei are present in a sample of 238U with an activity of 103 Bq?