1.The half-life period of element XXX is same as the mean life time of element YYY. Assume initially XXX and YYY have same number of atoms. Thena.Initially XXX and YYY have same decay ratesb.Always XXX and YYY decay at same ratec.YYY decays faster than XXXd.XXX decays faster than YYYLogin to continueOnly logged in users canattempt or see the solution.
