go+naturally
91do what comes naturally — British humorous to have sex …
93Isotopes of tungsten — Naturally occurring tungsten (W) consists of five isotopes whose half lives are so long that they can be considered stable. All can decay into isotopes of element 72 (hafnium) by alpha emission; 180W has been observed to have a half life of 1.8 + …
94Isotopes of samarium — Naturally occurring samarium (Sm) is composed of 4 stable isotopes, 144Sm, 150Sm, 152Sm and 154Sm, and 3 extremely long lived radioisotopes, 147Sm (1.06e|11y), 148Sm (7e|15y) and 149Sm (>2e|15y), with 152Sm being the most abundant (26.75% natural …
95Isotopes 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… …
96Isotopes of xenon — Naturally occurring xenon (Xe) is made of nine stable isotopes. (124Xe, 134Xe and 136Xe are predicted to undergo double beta decay, but this has never been observed, so they are considered to be stable.) [… …
97Isotopes of iron — Naturally occurring iron (Fe) consists of four isotopes: 5.845% of radioactive 54Fe (half life: >3.1 times;1022 years), 91.754% of stable 56Fe, 2.119% of stable 57Fe and 0.282% of stable 58Fe.60Fe is an extinct radionuclide of long half life (1.5 …
98molybdate and tungstate minerals — naturally occurring inorganic compounds that are salts of molybdic acid, H2MoO4, and tungstic acid, H2WO4. Minerals in these groups often are valuable ores. The structural unit of these minerals is a tetrahedral group formed by four… …
99History of salt — Naturally formed salt crystals Ancient method of boiling brine into pure salt …
100Isotopes 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… …
