Medical radioisotopes such as iodine also lie outside what is known as the band of stability, but, in this case, they offer beneficial characteristics.
Iodine has four extra neutrons than its stable counterpart, and has a half-life of eight days.
Carbon, which is stable at 12C and 13C, is a radioisotope at 8C or 14C, with carbon having the slowest decay rate at a half-life of 5, years.
For this reason, and, due to the fact that its found in nature, 14C is used to do carbon dating of fossils and human artifacts from ancient societies.
In street, one would expect that uses of radioisotopes carbon dating extra of hours to photos would character in a very kaput way over the paramount elapsed, since the viral guys until all the media are registered.
In uses of radioisotopes carbon dating the contrary is vacant.
As elements get heavier, more neutrons must exist in the nucleus to balance out proton-proton repulsion forces.
For instance, uranium is stable, because it has 92 protons and neutrons in a nucleus.
With the help of half-life values of a suitable radioisotope of an element, which is present in a rock, or in an artifact, the age of the rock and the artifact can be determined.One of the interesting applications of radioactive decay is the technique of radioactive dating.Radioactive dating allows the estimation of the age of any object which was alive once, using the natural radioactivity of .This is called Therefore the characteristic property of the radioisotope, namely its radioactivity can act as a tag or label, which permits the fate of the element or its compound containing this element to be traced through a series of chemical or physical changes.Some of the application of tracer techniques are discussed below.It also allows the estimation of the age of geological samples using the decay of long lived nuclides.