In a Decay of ₉₀Th²³² by Emission of an Alpha

question 23

Multiple Choice

In a decay of ₉₀Th²³² by emission of an alpha particle, the daughter nucleus will be

• A) "₉₂U²³²."
• B) "₉₀Th²²⁸."
• C) "₈₇Ac²³²."
• D) "₈₈Ra²³⁰."
• E) "₈₈Ra²²⁸."

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