翻訳と辞書 Words near each other ・ Thuli River ・ Thuli Thuli ・ Thuli Visham ・ Thulimbah, Queensland ・ Thulin ・ Thulin A (automobile) ・ Thulin B (automobile) ・ Thulin K ・ Thulin LA ・ Thulinia ・ Thulinius ・ Thulir ・ Thulisile Phongolo ・ Thuliso Dingwall ・ Thulite ・ Thulium ・ Thulium chloride ・ Thulium(III) chloride ・ Thulium(III) oxide ・ Thuli–Makwe Dam ・ Thuli–Manyange Dam ・ Thuli–Moswa Dam ・ Thuljaji ・ Thulla ・ Thulla Cove ・ Thulla Point ・ Thulladha Manamum Thullum ・ Thullal ・ Thulli Thirintha Kaalam ・ Thulli Vilayadu 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 Thulium ： ウィキペディア英語版 Thulium Thulium is a chemical element with symbol Tm and atomic number 69. It is the thirteenth and antepenultimate (third-last) element in the lanthanide series. Like the other lanthanides, the most common oxidation state is +3, seen in its oxide, halides and other compounds. In aqueous solution, like compounds of other late lanthanides, soluble thulium compounds form complexes with nine water molecules. In 1879, Swedish chemist Per Theodor Cleve separated in the rare earth erbia another two previously unknown components, which he called holmia and thulia: these were the oxides of holmium and thulium respectively. A relatively pure sample of thulium metal was only obtained in 1911. Thulium is the second least abundant of the lanthanides after promethium, which is only found in trace quantities on Earth. It is an easily workable metal with a bright silvery-gray luster. It is fairly soft and slowly tarnishes in air. Despite its high price and rarity, thulium is used as the radiation source in portable X-ray devices and in solid-state lasers. It has no significant biological role and is not particularly toxic. ==Properties== 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「Thulium」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.