1.

For nuclide ""_(Z)^(A) X , which of the following changes take place in respectively decay ?

Answer»

Both A and Z DECREASES in `alpha`- DECAY
Both A and Z do not Change in `gamma` -decay
A does not change but Z decreases by one unit in positron decay or K - electron CAPTURE
Both A and Z increases in `BETA`- decay

SOLUTION :`alpha`- decay `implies` Z & A `implies` decreases , `gamma`- decay `implies` Z & A `implies` no change K-electron capture `implies Z darr & A` = no change


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