翻訳と辞書 Words near each other ・ Isotopes of iridium ・ Isotopes of iron ・ Isotopes of krypton ・ Isotopes of lanthanum ・ Isotopes of lawrencium ・ Isotopes of lead ・ Isotopes of lithium ・ Isotopes of livermorium ・ Isotopes of lutetium ・ Isotopes of magnesium ・ Isotopes of manganese ・ Isotopes of meitnerium ・ Isotopes of mendelevium ・ Isotopes of mercury ・ Isotopes of molybdenum ・ Isotopes of neodymium ・ Isotopes of neon ・ Isotopes of neptunium ・ Isotopes of nickel ・ Isotopes of niobium ・ Isotopes of nitrogen ・ Isotopes of nobelium ・ Isotopes of osmium ・ Isotopes of oxygen ・ Isotopes of palladium ・ Isotopes of phosphorus ・ Isotopes of platinum ・ Isotopes of plutonium ・ Isotopes of polonium ・ Isotopes of potassium Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Isotopes of neodymium ： ウィキペディア英語版 Isotopes 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 have been characterized up to now, with the most stable being naturally occurring isotopes 144Nd (alpha decay, a half-life (t1/2) of 2.29×1015 years) and 150Nd (double beta decay, t1/2 of 7×1018 years). All of the remaining radioactive isotopes have half-lives that are less than 11 days, and the majority of these have half-lives that are less than 70 seconds. This element also has 13 known meta states with the most stable being 139''m''Nd (t1/2 5.5 hours), 135''m''Nd (t1/2 5.5 minutes) and 133''m''1Nd (t1/2 ~70 seconds). The primary decay modes before the most abundant stable isotope, 142Nd, are electron capture and positron decay, and the primary mode after is beta decay. The primary decay products before 142Nd are element Pr (praseodymium) isotopes and the primary products after are element Pm (promethium) isotopes. Standard atomic mass: 144.242(3) u. == Table == 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Isotopes of neodymium」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.