Provided in the table below are two radionuclides and their corresponding half-life periods. Which radionuclide decays the fastest and which isotope is the least stable ?
Isotope Half-life period Lead - 210 22 Years Platinum - 190 6.9×1011 Years
A) Lead - 210 decays the fastest and is the least stable.
B) Lead - 210 decays the fastest and Platinum - 190 is the least stable.
C) Platinum - 190 decays the fastest and is the least stable.
D) Platinum - 190 decays the fastest and Lead - 210 is the least stable.
E) They both decay at the same rate and Lead - 210 is the least stable.
Correct Answer:
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