A nuclide (or nucleide, from nucleus, also known as nuclear species) is a class of atoms characterized by their number of protons, Z, their number of neutrons, N, and their nuclear energy state.
The word nuclide … See more

Natural radionuclides may be conveniently subdivided into three types. First, those whose half-lives t1/2 are at least 2% as long as the age of the Earth (for practical purposes, these are difficult to detect with half-lives less than 10% of the age of the Earth) (4.6×10 … See more

Atomic nuclei other than hydrogen 1H have protons and neutrons bound together by the residual strong force. Because protons are positively charged, they repel each other. Neutrons, which are electrically neutral, stabilize the nucleus in two ways. Their … See more

• Livechart - Table of Nuclides at The International Atomic Energy Agency See more

Although the words nuclide and isotope are often used interchangeably, being isotopes is actually only one relation between nuclides. The following table names some other relations.
A set of nuclides with equal proton number ( See more

Beyond the naturally occurring nuclides, more than 3000 radionuclides of varying half-lives have been artificially produced and characterized. See more

• Isotope (much more information on abundance of stable nuclides)
• List of elements by stability of isotopes
• List of nuclides (sorted by half-life)
• Table of nuclides See more