Neon (10Ne) possesses three stable isotopes: 20 Ne , 21 Ne , and 22 Ne . In addition, 17 radioactive isotopes have been discovered, ranging from 15 Ne...

on Isotopes Periodic Table—Neon at the U.S. Geological Survey, by Eric Caldwell, posted January 2004, retrieved 10 February 2011 "Neon: Isotopes". Softciências...

to as stable isotopes or stable nuclides. For example, 14 C is a radioactive form of carbon, whereas 12 C and 13 C are stable isotopes. There are about...

Look up Neon, neon, neón, or néon in Wiktionary, the free dictionary. Neon is a chemical element with symbol Ne and atomic number 10. Neon or NEON may also...

positive ions enabled the discovery of stable isotopes of the elements. The first such discovery was with the element neon, which was shown by mass spectrometry...

abundance of the isotopes. Isotopomers (isotopic isomers) are isomers having the same number of each isotopic atom, but differing in the positions of the isotopic...

formation processes of the two stable isotopes of helium produce the differing isotope abundances. Equal mixtures of liquid 3 He and 4 He below 0.8 K separate...

composed of atoms of two different atomic masses (neon-20 and neon-22), that is to say of two isotopes. This was the first evidence for isotopes of a stable...

(hydrogen-2, symbol 2H or D, also known as heavy hydrogen) is one of two stable isotopes of hydrogen (the other is protium, or hydrogen-1). The deuterium...

elements, they are usually termed stable isotopes. The 80 elements with one or more stable isotopes comprise a total of 251 nuclides that have not been known...

able then to separate the two isotopes of neon, 20 Ne and 22 Ne . Aston discovered the whole number rule, that the masses of all the particles have whole...

There are three known stable isotopes of oxygen (8O): 16 O , 17 O , and 18 O . Radioactive isotopes ranging from 11 O to 28 O have also been characterized...

This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days...

11 have 5 stable isotopes, 9 have 4 stable isotopes, 5 have 3 stable isotopes, 16 have 2 stable isotopes, and 26 have 1 stable isotope. Additionally, about...

applied this method in 1913 when he separated two isotopes of neon by diffusing a sample thousands of times through a pipe clay. Thick materials like pipe...

are predominantly due to the existence of isotopes. For example, Aston discovered that neon has two isotopes with masses very close to 20 and 22 as per...

means of isotope separation was first demonstrated by Klaus Clusius and Gerhard Dickel in Germany in 1938, who used it to separate isotopes of neon. They...

diffusion had been used to separate isotopes before. Francis William Aston had used it to partially separate isotopes of neon in 1931, and Gustav Ludwig Hertz...

22Ne@C60, without any other neon isotopes. To make buckyballs with neon inside, buckminsterfullerene can be heated to 600 °C with neon under pressure. With three...

has isotopes that are not radioactive, these are termed "stable" isotopes. All of the known stable isotopes occur naturally (see primordial isotope). The...

as aerogens) are the naturally occurring members of group 18 of the periodic table: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon...

same time not corresponding to the mass of any natural isotope. For example, bromine has only two stable isotopes, 79Br and 81Br, naturally present in approximately...

Aston discovers multiple stable isotopes for neon. Leonard Eugene Dickson begins publication of History of the Theory of Numbers. Viggo Brun proves Brun's...

of isotope separation. This process was first demonstrated by Klaus Clusius and Gerhard Dickel in Germany in 1938, who used it to separate isotopes of...

but which arise as simple daughter isotopes from radioactive decay. Nucleogenic isotopes, as noted, are the result of a more complicated nuclear reaction...

among all isotopes for which decay has been observed; it undergoes double electron capture to 78Se). In addition, about thirty unstable isotopes and isomers...

neutrons. It makes up almost 100% of all naturally occurring beryllium and is its only stable isotope; however other isotopes have been synthesised. In ionic...

synthetic element and thus has no stable isotopes. A standard atomic weight cannot be given. The first isotope to be synthesized was either 259Rf in 1966...

of nuclides produced by cosmic ray spallation. The x-process in cosmic rays is the primary means of nucleosynthesis for the five stable isotopes of lithium...

Chemistry of the Ludwig Maximilian University of Munich. Clusius and Dickel published a paper in 1938 announcing that they had separated isotopes of neon. They...