1.

The element with atomic number 84 and mass number 218 change to other element with atomic number 84 and mass number 214. The number of alpha and beta particles emitted are respectively.

Answer»

SOLUTION :`""_(84)X^(218) OVERSET( alpha "decay") to ""_(82)Y^(214)+ x""_(2)He^(4)`
`""_(82)Y^(214) overset(2beta) to ""_(84)Y^(214)+y""_(2)e^(0)`
Number of alpha decay, X = 1
Number of beta decay, y = 2


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