A nucleus emits α-particle, followed by two β-particles. The final nucleus will be:
Correct answer: B. An isotope of the original one
- A. An isotone of the original one
- B. An isotope of the original one
- C. An isobar of the original one
- D. None of these options are correct
Explanation
Let AZX be the nucleusAfter a decay,the resulting nucleus will be A-4Z-2XFurther,A-4Z-2X undergoes β decay two timesHence the resultant nucleus will be A-4Z-2+1+1 X= A-4ZXTherefore,the atomic number of the resultant nucleus remains unchanged.Hence,the resultant nucleus is an isotope of X.
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Atomic nuclei contain protons and neutrons, with nuclear size, mass defect and binding energy describing their stability. The work covers alpha, beta and gamma decay, decay equations, half-life and decay rate, along with radiation safety and medical applications such as imaging, radiotherapy and tracers.
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