18 The rate of disintegration was observed to be 1017 disintegrations per sec when its half life period is 1445 years The

Question

18 The rate of disintegration was observed to be 1017 disintegrations per sec when its half life period is 1445 years The original number of particles are 1 8 9 1027 2 6 6 1027 4 1 2 10 7 3 1 4 1016 X

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