The decay of a nucleus of neptunium is accompanied by the emission of a β-particle and γ-radiation. What effect if any does this decay have on the proton number and the nucleon number of the nucleus?
Correct answer: D. Option D
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation
Option D is correct because during the decay of a neptunium nucleus with the emission of a β-particle and γ-radiation, the proton number (atomic number) increases by one, transforming the nucleus into a different element, while the nucleon number (mass number) remains nearly unchanged.
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About Radioactive Decay
Radioactive decay is the spontaneous transformation of unstable nuclei, described by decay constant, activity, half life and the exponential decay law. Work includes alpha, beta and gamma emissions, decay equations and remaining nuclei, with half life distinguished from the time required for complete decay.
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