the isotopic composition of all elements
21Isotopes of neodymium — Naturally occurring neodymium (Nd) is composed of 5 stable isotopes, 142Nd, 143Nd, 145Nd, 146Nd and 148Nd, with 142Nd being the most abundant (27.2% natural abundance), and 2 radioisotopes, 144Nd and 150Nd. In all, 33 radioisotopes of Neodymium… …
22Isotopes of molybdenum — There are 33 known isotopes of molybdenum (Mo) ranging in atomic mass from 83 to 115, as well as four metastable nuclear isomers. Seven isotopes occur naturally, with atomic masses of 92, 94, 95, 96, 97, 98, and 100. Of these naturally occurring… …
23Extraterrestrial materials — Most atoms on earth came from the interstellar dust and gas from which the sun and solar system formed. However, in the space science community extraterrestrial materials generally refers to objects now on earth that were solidified prior to… …
24Isotopes of lithium — Naturally occurring lithium (Li) (standard atomic mass: 6.941(2) u) is composed of two stable isotopes (SimpleNuclide|Lithium|6 and SimpleNuclide|Lithium|7, the latter being the more abundant (92.5% natural abundance). Seven radioisotopes have… …
25Isotopes of osmium — Osmium (Os) has seven naturally occurring isotopes, 6 of which are stable: 184Os, 187Os, 188Os, 189Os, 190Os, and (most abundant) 192Os. The other one, 186Os, has an extremely long half life (2×1015 years) and for practical purposes can be… …
26Isotopes of cerium — Naturally occurring cerium (Ce) is composed of 4 stable isotopes: 136Ce, 138Ce, 140Ce, and 142Ce with 140Ce being the most abundant (88.48% natural abundance); 136Ce, 138Ce, and 142Ce are predicted to undergo double beta decay but this process… …
27Isotopes of nickel — Naturally occurring nickel (Ni) is composed of five stable isotopes; 58 Ni, 60 Ni, 61 Ni …
28Isotopes of chlorine — Chlorine (Cl) has 24 isotopes with mass numbers ranging from 28Cl to 51Cl and 2 isomers (34mCl and 38mCl). There are two principal stable isotopes, 35Cl (75.78%) and 37Cl (24.22%), found in the relative proportions of 47.89:12.11, not 3:1,… …
29Nucleosynthesis — Nuclear physics Radioactive decay Nuclear fission Nuclear fusion Classical decays …
30Vienna Standard Mean Ocean Water — VSMOW, or Vienna Standard Mean Ocean Water, is an isotopic water standard defined in 1968 by the International Atomic Energy Agency. Despite the somewhat misleading phrase ocean water , VSMOW refers to pure water (H2O) and does not include any… …
