Nucleus
i did after 1 hour particles left = 125 , decomposed = 875 , now 60% probability of alpha so 60% of alpha is 525 , i get the ans but is my method right or is it a coincidence i got the ans

6 Replies
@Gyro Gearloose
Note for OP
+solved @user1 @user2...
to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.is this of math or phy
phy
ohh
works, he has done the same thing na