Question: 1). If The Half-life Of An Isotope Is 1 Million Years, And 200 Of These Isotope Atoms Get Trapped In A Crystal In An Igneous Rock When It First Forms, How Old Will The Rock Be When There Are Only 25 Of These Isotopes Left In The Crystal?
1). If the half-life of an isotope is 1 millionyears, and 200 of these isotope atoms get trapped in a crystal inan igneous rock when it first forms, how old will the rock be whenthere are only 25 of these isotopes left in the crystal?
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