A radiogenic nuclide is a nuclide that is produced by a process of radioactive decay. It may itself be radioactive (a radionuclide) or stable (a stable...

radionuclides. Their decay products ('daughter' products) are called radiogenic nuclides. Natural radionuclides may be conveniently subdivided into three...

stable argon isotope 40Ar is actually more common as a radiogenic nuclide than as a primordial nuclide, forming almost 1% of the Earth's atmosphere, which...

Isobars are atoms (nuclides) of different chemical elements that have the same number of nucleons. Correspondingly, isobars differ in atomic number (or...

206Pb, 207Pb, 208Pb. Lead-204 is entirely a primordial nuclide and is not a radiogenic nuclide. The three isotopes lead-206, lead-207, and lead-208 represent...

afore-mentioned cosmogenic nuclides, the nucleogenic nuclides, and any radiogenic nuclides formed by ongoing decay of a primordial radioactive nuclide, such as radon...

these elements. It is predicted to appear as an "island" in the chart of nuclides, separated from known stable and long-lived primordial radionuclides. Its...

daughter product, daughter isotope, radio-daughter, or daughter nuclide) is the remaining nuclide left over from radioactive decay. Radioactive decay often...

radiogenic nuclides that were formed from short-lived extinct radionuclides in the early Solar System. The extra presence of these stable radiogenic nuclides...

the primary source of radiogenic heating and radioactive decay products. Together, there are a total of 286 primordial nuclides. The list then covers...

(lowering the mass), then this will happen through beta decay, meaning the nuclide will be radioactive. The two methods for this conversion are mediated by...

the nuclides are therefore unstable toward spontaneous fission-type processes. In practice, this mode of decay has only been observed in nuclides considerably...

a nuclear isomer can even exceed that of the ground state of the same nuclide, as shown by 180m 73Ta as well as 186m 75Re , 192m2 77Ir , 210m 83Bi ,...

collide to produce one or more new nuclides. Thus, a nuclear reaction must cause a transformation of at least one nuclide to another. If a nucleus interacts...

mass differences on the order of a few electron masses. If possible, a nuclide will undergo beta decay to an adjacent isobar with lower mass. In the absence...

radioactive nuclides. These decay-products are termed radiogenic isotopes, in order to distinguish them from the much larger group of 'non-radiogenic' isotopes...

thus forms a practical limit to heavy element nucleon number. Heavier nuclides may be created instantaneously by physical processes, both natural (via...

but since its activity is inversely proportional to its half-life, each nuclide in the decay chain contributes as many individual transformations as the...

remaining number of atoms is large. The decay product is termed a radiogenic nuclide. Thermoelectricity: The decline in resistance of a Negative Temperature...

phenomenon "artificial radioactivity", because 30 15P is a short-lived nuclide which does not exist in nature. The discovery of artificial radioactivity...

(fast energetic electron or positron), transforming into an isobar of that nuclide. For example, beta decay of a neutron transforms it into a proton by the...

becomes unstable and subject to certain types of nuclear decay. Unstable nuclides with a nonoptimal number of neutrons or protons decay by beta decay (including...

neutron by some heavy nuclides (such as uranium-235) can cause the nuclide to become unstable and break into lighter nuclides and additional neutrons...

atom of one type (called the parent nuclide) transforming to an atom of a different type (called the daughter nuclide). The energy difference of the reactants...

liquid drop model. Halo nuclei form at the extreme edges of the table of nuclides — the neutron drip line and proton drip line — and have short half-lives...

occurs in the most neutron-rich/proton-deficient nuclides, and also from excited states of other nuclides as in photoneutron emission and beta-delayed neutron...

Additionally, less stable fission products are less likely to decay to stable nuclides, instead decaying to other radionuclides, which undergo further decay and...

maximally dense. Halo nuclei form at the extreme edges of the chart of the nuclides—the neutron drip line and proton drip line—and are all unstable with short...

may be observed in other nuclides, adding to this list of primordial radionuclides. Secondary radionuclides are radiogenic isotopes derived from the...

"proton" to "n" for "neutron". The largest numbers of observationally stable nuclides exist for isotones 50 (five: 86Kr, 88Sr, 89Y, 90Zr, 92Mo – noting also...