Provided in the Table Below Are Two Radionuclides and Their

question 85

Multiple Choice

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.

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