The half life of the decay process of 238?238U to 206??206Pb is 4.5x109 yr.   A laboratory investigation shows that a sample of uranium ore contains: 0.0225 mmols of 238?238U 0.0125 mmols of 206??206Pb Calculate the age of this sample of uranium ore including all units.

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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.