翻訳と辞書 Words near each other ・ Isotope electrochemistry ・ Isotope fractionation ・ Isotope geochemistry ・ Isotope hydrology ・ Isotope lists ・ Isotope lists, 0-24 ・ Isotope lists, 25-48 ・ Isotope lists, 49-72 ・ Isotope lists, 73-96 ・ Isotope lists, 97+ ・ Isotope separation ・ Isotope-coded affinity tag ・ Isotope-ratio mass spectrometry ・ Isotopes of actinium ・ Isotopes of aluminium ・ Isotopes of americium ・ Isotopes of antimony ・ Isotopes of argon ・ Isotopes of arsenic ・ Isotopes of astatine ・ Isotopes of barium ・ Isotopes of berkelium ・ Isotopes of beryllium ・ Isotopes of bismuth ・ Isotopes of bohrium ・ Isotopes of boron ・ Isotopes of bromine ・ Isotopes of cadmium ・ Isotopes of caesium ・ Isotopes of calcium 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 americium ： ウィキペディア英語版 Isotopes of americium Americium (Am) is an artificial element, and thus a standard atomic mass cannot be given. Like all artificial elements, it has no known stable isotopes. The first isotope to be synthesized was 241Am in 1944. Nineteen radioisotopes of americium have been characterized, with the most stable being 243Am with a half-life of 7,370 years, and 241Am with a half-life of 432.2 years. All of the remaining radioactive isotopes have half-lives that are less than 51 hours, and the majority of these have half-lives that are less than 100 minutes. This element also has 8 meta states, with the most stable being 242mAm (t1/2 141 years). The isotopes of americium range in atomic weight from 231.046 u (231Am) to 249.078 u (249Am). == Some notable isotopes == 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 americium」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.