An unstable nucleus will decompose spontaneously, or decay, into a more stable configuration but will do so only in a few specific ways by emitting certain or certain forms of electromagnetic energy.Radioactive decay is a property of several naturally occurring elements as well as of artificially produced isotopes of the elements.
, property exhibited by certain types of matter of emitting energy and subatomic particles spontaneously.
It is, in essence, an attribute of individual atomic nuclei.
All ordinary matter is made up of combinations of chemical elements, each with its own atomic number, indicating the number of protons in the atomic nucleus.
Additionally, elements may exist in different isotopes, with each isotope of an element differing in the number of neutrons in the nucleus.
and is now the principal source of information about the absolute age of rocks and other geological features, including the age of fossilized life forms or the age of the Earth itself, and can also be used to date a wide range of natural and man-made materials.
Together with stratigraphic principles, radiometric dating methods are used in geochronology to establish the geological time scale.
Out of these three particles, protons and neutrons located at the center of the atom as a hard and dense part known as nucleus.
The rest of the part of atom contains negatively charged particles called as electron which balance out the charge of the protons and make the atom electrically neutral..
The rate at which a radioactive element decays is expressed in terms of its ).
The product of a radioactive decay process—called the daughter of the parent isotope—may itself be unstable, in which case it, too, will decay.
The process continues until a stable nuclide has been formed. Neutrons and protons are, of course, the basic building blocks of complex nuclei, having approximately unit mass on the atomic scale and having zero charge or unit positive charge, respectively.