The decay mode for the first and third steps is shown above the arrows. The decay mode for the second step is not shown in the diagram. Thorium-234 has a half-life of 24.10 days. Explain, in terms of neutrons and protons, why U-238 and U-234 are different isotopes of uranium.
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The decay mode for the first and third steps is shown above the arrows. The decay mode for the secon...
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