FutureStarr

What Is a Isotopeor

What Is a Isotopeor

What Is a Isotope

Isotope is a WordPress plugin for the frontend, helping you visualize your most important content in an easy and fully editable way. It features sleek design and a low-overhead approach. Isotope can be a fun and interesting new way of presenting content.

Study

F. W. Aston subsequently discovered multiple stable isotopes for numerous elements using a mass spectrograph. In 1919 Aston studied neon with sufficient resolution to show that the two isotopic masses are very close to the integers 20 and 22 and that neither is equal to the known molar mass (20.2) of neon gas. This is an example of Aston's whole number rule for isotopic masses, which states that large deviations of elemental molar masses from integers are primarily due to the fact that the element is a mixture of isotopes. Aston similarly showed

Anthropogenic isotopes are man-made or result from human activities, such as testing weapons and processing nuclear fuels. These isotopes are useful in the fields of oceanography and hydrology since they can be used to study flow, currents and sedimentation rates. Anthropogenic isotopes include some cosmogenic isotopes, such as carbon-14, chlorine-36 and hydrogen-3, as well as krypton-85. (Source: study.com)

Isotopes

A nuclide is a species of an atom with a specific number of protons and neutrons in the nucleus, for example carbon-13 with 6 protons and 7 neutrons. The nuclide concept (referring to individual nuclear species) emphasizes nuclear properties over chemical properties, whereas the isotope concept (grouping all atoms of each element) emphasizes chemical over nuclear. The neutron number has large effects on nuclear properties, but its effect on chemical properties is negligible for most elements. Even for the lightest elements, whose ratio of neutron number to atomic number varies the most between isotopes, it usually has only a small effect although it matters in some circumstances (for hydrogen, the lightest element, the isotope effect is large enough to affect biology strongly). The term isotopes (originally also isotopic elements.

Theory predicts that many apparently "stable" isotopes/nuclides are radioactive, with extremely long half-lives (discounting the possibility of proton decay, which would make all nuclides ultimately unstable). Some stable nuclides are in theory energetically susceptible to other known forms of decay, such as alpha decay or double beta decay, but no decay products have yet been observed, and so these isotopes are said to be "observationally stable". The predicted half-lives for these nuclides often greatly exceed the estimated age of the universe, and in fact, there are also 31 known radionuclides (see primordial nuclide) with half-lives longer than the age of the universe. (Source: en.wikipedia.org)

 

Related Articles