MCQ
An element $Z^{X^A}$ successively undergoes three $\alpha$ decays and four $\beta$ decays and gets converted an element $Y$ are respectively
- A${ }_{Z-6} Y^{A-12}$
- B$Z+2 Y^{A-12}$
- ✓${ }_{Z-2} Y^{A-12}$
- D$Z_{-10} Y^{A-12}$
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