Aradium Ra_88^224isotope, on emission of an alpha-particle gives rise – InterviewSolution

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1.	Aradium Ra_88^224isotope, on emission of an alpha-particle gives rise to a new element whose mass number and atomic number will be:
Answer» 220 and 86 225 and 87 228 and 88 224 and 86 Solution :When an `alpha`-particle is emitted by any nucleus then atomic WEIGHT decrease by four UNITS and atomic number DECREASES by two units `._(88)RA^(224) overset(-alpha)rarr ._(86)X^(220)`

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