About Carbon-14:
- Carbon has three main isotopes: carbon-12, carbon-13, and carbon-14. The first two are stable.
- Carbon-14 is a radioactive isotope of carbon.
- It is created in the atmosphere through the bombardment of nitrogen by cosmic rays.
- It has six protons and eight neutrons in its nucleus.
- It is used in radiocarbon dating to determine the age of organic substances by measuring its decay over time.
What is Radiocarbon Dating, or Carbon-14 Dating?
- It is a method that provides objective age estimates for carbon-based materials that originated from living organisms.
- It is based on the fact that living organisms—like trees, plants, people, and animals—absorb carbon-14 into their tissue.
- When they die, the carbon-14 starts to change into other atoms over time.
- Carbon-14 has a half-life of approximately 5,730 years (i.e., half the amount of the isotope present at any instant will undergo spontaneous disintegration during the succeeding 5,730 years).
- Because carbon-14 decays at this constant rate, an estimate of the date at which an organism died can be made by measuring the amount of its residual carbon-14.
- Over the years, carbon-14 dating has also found applications in geology, hydrology, geophysics, atmospheric science, oceanography, paleoclimatology, and even biomedicine.
