A volcanic mineral originally contained only the parent isotope

PHYSICS · Subjective · A Level · Physics · Nuclear physics · Nuclear physics

Problem

A volcanic mineral originally contained only the parent isotope XX. Today the mineral is found to have 37%37\% of the original parent isotope remaining. If the half-life of isotope XX is 7100 yr7100\,\text{yr}, estimate the age of the mineral in years.

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