Carbon 14 useful radioactive dating not nuclear medicine
Phosphorus - 30 decays by ejecting a positron and has a half-life of about 3 minutes.The important point is that it is now possible to produce any radioisotope.Radiometric dating, or radioactive dating as it is sometimes called, is a method used to date rocks and other objects based on the known decay rate of radioactive isotopes.Different methods of radiometric dating can be used to estimate the age of a variety of natural and even man-made materials.Naturally occurring radioactive substances have high nucleon number.It is possible to make artificial radioactive substances by bombarding lighter nuclides with - particles, protons or neutrons.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 thing that makes this decay process so valuable for determining the age of an object is that each radioactive isotope decays at its own fixed rate, which is expressed in terms of its half-life.
Learn about half-life and how it is used in different dating methods, such as uranium-lead dating and radiocarbon dating, in this video lesson. As we age, our hair turns gray, our skin wrinkles and our gait slows.
The radioactive substances produced in this manner are known as radioisotopes.