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Question
Identify the nature of the radioactive radiations emitted in each step of the decay process given below.
`""_Z^A X -> _Z^A _-1^-4 Y ->_Z^A _-1^-4 W`
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Solution
`""_Z^A X -> _Z^A _-1^-4 Y ->_Z^A _-1^-4 W`
An alpha particle `""_2^4 "He"` is emitted in the first reaction as the atomic mass of Y is reduced by 4 and the atomic number is reduced by 2. An election `""_-1^0"e"` is emitted in the second reaction as the atomic mass of W remains the same and the atomic number is increased by 1.
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