1.

Which of the following process not lead to formation of isobars?

Answer»

`1 alpha` particle and `2 beta` PARTICLES are emitted
Positron emission
`beta` particle `(`_(-1)e^(0))`` emission
K-electron capture

Solution :`_(X)A^(Z) rarr_(X-2)B^(Z-4)+`_(2)He^(4)``
`_(X-2)B^(Z-4) rarr `_(X-1)C^(Z-4)+ `_(-1)e^(0)```
`_(X-1)C^(Z-4) rarr `_(X)D^(z-4)+ `_(-1)e^(0)```


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