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//Example 27_6
clc();
clear;
//To find how many radium atoms in the vial undergo decay
t1=5.1*10^10 //Units in sec
lamda=0.693/t1 //Units in sec^-1
n1=6.02*10^26 //Units in atoms/Kmol
n2=226 //Units in Kg/Kmol
m1=0.001 //Units in Kg
N=n1*m1/n2 //Units in number of atoms
deltat=1 //Units in sec
deltan=-lamda*N*deltat //Units in Number
printf("The number of dis integrations per sec=")
disp(deltan)
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