5Pb has a half-life of about t½ = 1.76x107 years and decays into 205Tl. There is no evidence for primordial 205Tl. (In
Posted: Mon May 09, 2022 6:00 pm
5Pb has a half-life of about t½ =
1.76x107 years and decays
into 205Tl. There is no evidence for
primordial 205Tl. (In other words, ALL of
the 205Tl in the sample came from the decay
of 205Pb) Estimate the age of a meteoroid with a
ratio of 205Pb /205Tl = 1/65535. (Answer
in scientific notation, in years, using 3 sig. figs.)
1.76x107 years and decays
into 205Tl. There is no evidence for
primordial 205Tl. (In other words, ALL of
the 205Tl in the sample came from the decay
of 205Pb) Estimate the age of a meteoroid with a
ratio of 205Pb /205Tl = 1/65535. (Answer
in scientific notation, in years, using 3 sig. figs.)