So, you might say that the 'full-life' of a radioactive isotope ends when it has given off all of its radiation and reaches a point of being non-radioactive. The method was developed by Willard Libby in the late 1940s and soon became a standard tool for archaeologists.Amateur Radio | |Biology | Books | Chemistry | Data Sheets | Electronics | Math | Microscope | NASA-TV | | Photography | Physics | Radio Astronomy | Robots | Science News | Space-Astronomy | Transistors | Search This Site | The OCR Carbon Dating Home Page Carbon Dating Carbon Dating How accurate are Carbon-14 and other radioactive dating methods? Radiometric Dating BBC - History - Archaeology - Carbon Dating Dating Exhibit How about carbon dating? Howstuffworks "How Carbon-14 Dating Works" radiocarbon WEB-info The method How accurate are Carbon-14 and other radioactive dating methods? In the case of radiocarbon dating, the half-life of carbon 14 is 5,730 years.This half life is a relatively small number, which means that carbon 14 dating is not particularly helpful for very recent deaths and deaths more than 50,000 years ago.The carbon-14 undergoes radioactive decay once the plant or animal dies, and measuring the amount of carbon-14 in a sample conveys information about when the plant or animal died.
The methods work because radioactive elements are unstable, and they are always trying to move to a more stable state. This process by which an unstable atomic nucleus loses energy by releasing radiation is called radioactive decay.
The process of carbon-14 dating was developed by William Libby, and is based on the fact that carbon-14 is constantly being made in the atmosphere.
It is incorporated into plants through photosynthesis, and then into animals when they consume plants.
Carbon dating has given archeologists a more accurate method by which they can determine the age of ancient artifacts.
Libby invented carbon dating for which he received the Nobel Prize in chemistry in 1960.