Provided in the table below are two isotopes and their corresponding half-life periods. Which isotope decays the fastest and which isotope is the most stable ?
Isotope Half-life period Carbon - 14 5730 Years Lead - 210 22 Years

Question

Quizplus · Accepted Answer

Lead-210 has a shorter half-life period of 22 years compared to Carbon-14's half-life period of 5730 years. A shorter half-life period indicates that the isotope decays faster. Therefore, Lead-210 decays the fastest. The more stable isotope is the one with the longer half-life period, which is Carbon-14 in this case. Therefore, Carbon-14 is the most stable. Hence, the correct option is D.

Provided in the Table Below Are Two Isotopes and Their