A) \[\beta ,\,\,\alpha ,\,\,\gamma \]
B) \[\gamma ,\,\,\beta ,\,\,\alpha \]
C) \[\beta ,\,\,\gamma ,\,\,\alpha \]
D) \[\alpha ,\,\,\beta ,\,\,\gamma \]
Correct Answer: A
Solution :
| Key Idea In a nuclear reaction conservation of charge number and mass number must hold good. |
| Alpha particles are positively charged particles with charge +2e and mass 4 m. Emission of an \[\alpha -\]article reduces the mass of the radionuclide by 4 and its atomic number by 2. \[\beta -\]articles are negatively charged particles with rest mass as well as charge same as that of electrons \[\gamma -\]particles carry no charge and mass. |
| Radioactive transition will be as follows |
| \[_{Z}^{A}X\,\xrightarrow{{}}\,_{Z+1}^{A}Y\,+\beta _{-1}^{0}\] |
| \[_{Z+1}^{A}Y\,\xrightarrow{{}}\,_{Z-1}^{A-4}\beta \,+\,\alpha _{2}^{4}\] |
| \[_{Z+1}^{A-4}\beta \,\xrightarrow{{}}\,_{Z-1}^{A-4}\beta \,+\,\gamma _{0}^{0}\] |
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