A rock contains 3.008 mg of 238U and 0.624 mg of 206Pb. The half-life of 238U is 4.51 ' 10 9 years. Estimate the age of the rock. a. 1.39 109 y b. 1.12 109 y C. 1.02 1010 y d. 6.12 108 y e. 3.74 104 y

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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.