The Isotope ²³⁸U,which Starts One of the Natural Radioactive Series,decays

question 65

Multiple Choice

The isotope ²³⁸U,which starts one of the natural radioactive series,decays first by alpha decay followed by two negative beta decays.At this point,what is the resulting isotope?

• A)²³⁸U
• B)²³⁶U
• C)²³⁴Th (Z = 90 for Th. )
• D)Some other uranium isotope not given above.

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