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Mass number of a radioactive element is ...

Mass number of a radioactive element is 232 and its atomic number is 90. When this element undergoes certain nuclear reactions, it transforms into an isotope of lead with a mass number 208 and an atomic number 82. Determine the number of alpha and beta dacay that can occur.

Text Solution

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`""_(90)X^(232) overset(4beta)to ""_(94)Y^(232)+ 4""_(4)e^(0)(4beta "decay")`
From the result of `beta` decay,
`""_(94)X^(232) overset(6 alpha)to ""_(82)Y^(208)+ 6""_(2)He^(4)(6 alpha "decay")`
The number of `alpha` decay = 6
The number of `beta` decay = 4
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