92U238 decays into 90Th234 via Alpha dec

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Target Exam

CUET

Subject

Physics

Chapter

Nuclei

Question:

₉₂U²³⁸ decays into ₉₀Th²³⁴ via Alpha decay. What can you predict about the mass of ₉₂U²³⁸?

Options:

lower than the alpha particle

higher than alpha particle but lower than ₉₀Th²³⁴

lower than the ₉₀Th²³⁴

higher than both ₉₀Th²³⁴ and alpha particle

Correct Answer:

higher than both ₉₀Th²³⁴ and alpha particle

Explanation:

Mass of products is always lower than mass of reactant(s).