The radioactive decay of TI-206 to Pb-206 has a half-life
Chapter 20, Problem 27QP(choose chapter or problem)
The radioactive decay of TI-206 to Pb-206 has a half-life of 4.20 min. Starting with 5 00 × 1022 atoms of T1-206. calculate the number of such atoms left after 42.0 min.
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