翻訳と辞書 Words near each other ・ 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 ・ Isotopes of praseodymium ・ Isotopes of promethium ・ Isotopes of protactinium ・ Isotopes of radium ・ Isotopes of radon ・ Isotopes of rhenium ・ Isotopes of rhodium ・ Isotopes of roentgenium ・ Isotopes of rubidium ・ Isotopes of ruthenium ・ Isotopes of rutherfordium ・ Isotopes of samarium ・ Isotopes of scandium ・ Isotopes of seaborgium ・ Isotopes of selenium 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 praseodymium ： ウィキペディア英語版 Isotopes of praseodymium Naturally occurring praseodymium (Pr) is composed of one stable isotope, 141Pr. Thirty-eight radioisotopes have been characterized with the most stable being 143Pr, with a half-life of 13.57 days and 142Pr, with a half-life of 19.12 hours. All of the remaining radioactive isotopes have half-lives that are less than 5.985 hours and the majority of these have half-lives that are less than 33 seconds. This element also has 15 meta states with the most stable being 138mPr (t1/2 2.12 hours), 142mPr (t1/2 14.6 minutes) and 134mPr (t1/2 11 minutes). The isotopes of praseodymium range in atomic weight from 120.955 u (121Pr) to 158.955 u (159Pr). The primary decay mode before the stable isotope, 141Pr, is electron capture and the mode after is beta decay. The primary decay products before 141Pr are element 58 (cerium) isotopes and the primary products after are element 60 (neodymium) isotopes. Standard atomic mass: 140.90766(2) u.〔(Table of Standard Atomic Weights 2013 – CIAAW )〕 == 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 praseodymium」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.