Physics, 22.11.2019 22:31 andybiersack154

The rubidium isotope 87rb is a β emitter that has a half-life of 4.9 ✕ 1010 y that decays into 87sr. it is used to determine the age of rocks and fossils. rocks containing the fossils of early animal have a ratio of 87sr to 87rb of 0.0040. assuming that there was no 87sr present when the rocks were formed, calculate the age of the fossils.

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The rubidium isotope 87rb is a β emitter that has a half-life of 4.9 ✕ 1010 y that decays into 87sr....