* Short-lived isotopes
I just saw a fundie post this on another forum:
"But, explain polonium rings appearing in rocks. If Polonium has a half life of a few milliseconds, then how could it form in rocks? That's one of many but you can chew on that for a while."
Tee-hee.
Naturally Occuring Polonium Isotopes
ISOTOPE HALF LIFE
210 138.4 days
211 0.516 seconds
212 0.298 microseconds
214 163.7 microseconds
215 1.78 milliseconds
216 0.145 seconds
218 3.04 minutes
Handbook of Chemistry & Physics 2007
the 210 isotope has a half life long enough to build up and reach equilibrium as long as the parent Uranium 238, Uranium 235 or Thorium 232 has not completely decayed.
Edited by bluescat48, : spelling
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