1.

Which of the following particle is emitted in the reaction ._(13)Al^(27) + ._(2)He^(4) rarr ._(14)P^(30) +....

Answer»

`._(0)N^(1)`
`._(-1)E^(0)`
`._(1)H^(1)`
`._(1)H^(2)`

SOLUTION :Equate atomic no. and MASS no.


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