Answer to Question #282936 in Atomic and Nuclear Physics for BIGIRMANA Elie

Question

The atomic ratio between Uranium isotope 238U and 234U in a mineral sample is found

to be 1.8 × 104

. The half-life of 234U is 2.5 × 105 yrs. Find the hal-life of 238U.

Answer 1

$T_{238}=nT_{234}=4.5\cdot 10^9$ years.