the different possible versions of each element are called isotopes. For example, the most common isotope of hydrogen has no neutrons at all;

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The same goes for isotopes. They are still the same element. They are just a little different from every other atom of the same element. There are a lot of carbon atoms in the universe.

A nuclide is an atomic nucleus with a specified composition of protons and neutrons. The nuclide concept emphasizes nuclear properties over chemical properties while the isotope concept does the converse; for the neutron number has drastic effects on nuclear properties but negligible...

The Uranium Information Centre no longer exists and, as a consequence, Much of the information contained on this site is now available either from the Australian Uranium Association, at aua.org.au,

This WebElements periodic table page contains naturally occurring isotopes data for the element dysprosium ... Many of the Dy isotopes have been the subject of physics research.

This WebElements periodic table page contains naturally occurring isotopes data for the element gold ... This table shows information about naturally occuring isotopes, their atomic masses,

Medical Isotopes, Inc. a premier manufacturer of stable isotope chemicals labeled with: Deuterium, C13, N15, O18 and metal isotopes. ... Activators; Affinity & Chromatography Media; Agonists;

Isotopes of Nitrogen: Here, There, and Everywhere ... It is known that nitrogen has only two isotopes that are stable: 14N and 15N. On Earth, 99.632% of all N atoms have atomic mass number 14 (and a

The past one hundred years has brought the incredible field of nuclear chemistry into all of our lives. ... We derive numerous benefits from it's applications, ... In this section, we explore some of