Assuming the only chemicals process is the radioactive


Dating System Age of half-life

238U -> 206Pb 4.5 Billion Years

235U -> 207Pb 713 Million Years

40K -> 40Ar 1.3 Billion Years

14C -> 14N 5730 Year

A Rock Originally has 2200 atoms of 235U and no 207Pb. it now has 800 atoms of 235U. Assuming the only chemicals process is the radioactive decay of Uranium to Lead, what is the age of the rocks?

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Dissertation: Assuming the only chemicals process is the radioactive
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