Can you determine the age of something by examining half life?

Yes, you can determine the age of something by examining its half-life, particularly in radiometric dating. The half-life is the time it takes for half of a radioactive substance to decay into a stable form. By measuring the remaining amount of the radioactive isotope and knowing its half-life, scientists can calculate how many half-lives have passed and thus estimate the age of the sample. This method is commonly used for dating ancient organic materials, such as fossils and archaeological artifacts.