![17.6: Radiocarbon Dating: Using Radioactivity to Measure the Age of Fossils and Other Artifacts - Chemistry LibreTexts 17.6: Radiocarbon Dating: Using Radioactivity to Measure the Age of Fossils and Other Artifacts - Chemistry LibreTexts](https://i.ytimg.com/vi/4UPmy_XofMo/maxresdefault.jpg)
17.6: Radiocarbon Dating: Using Radioactivity to Measure the Age of Fossils and Other Artifacts - Chemistry LibreTexts
![A radioactive isotope has a half - life of T years. How long will it take the activity to reduce to (a) 3.125% (b) 1% of its original value? A radioactive isotope has a half - life of T years. How long will it take the activity to reduce to (a) 3.125% (b) 1% of its original value?](https://i.ytimg.com/vi/nquMfST0UHY/maxresdefault.jpg)
A radioactive isotope has a half - life of T years. How long will it take the activity to reduce to (a) 3.125% (b) 1% of its original value?
![Given 100.0 g of a radioactive isotope that has a half-life of 25 years, what amount of that isotope will remain after 100 years? | Socratic Given 100.0 g of a radioactive isotope that has a half-life of 25 years, what amount of that isotope will remain after 100 years? | Socratic](https://useruploads.socratic.org/bflWNTv9RPS7dTQHyjgA_13-exponentials-01.gif)