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प्रश्न
What do you understand by radioactive decay? An isotope of Uranium `""_92^238 "U"` is radioactive and changes into Thorium 92 by the emission of an alpha particle. Write a symbolic equation for this decay process.
उत्तर
The process of destruction of the originaI nucleus during the formation of new nucleus due to radioactivity is called radioactive decay.
Question is wrong as Thorium has atomic number 90 not 92.
SymboIic equation of decay is
92U238 → 90Th234 + 2He.
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