1.

A radioactive element has half-life of one day. After three days, the amount of the element left will be

Answer»

1.2 of the original amount
1.4 of the original amount
1.8 of the original amount
1/16 of the original amount

Solution :`n = (3)/(1) = 3, N = (N_(0))/(2^(3)) = (1)/(8)`


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