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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Alkaline earth metal ： ウィキペディア英語版 Alkaline earth metal The alkaline earth metals are six chemical elements in column (group) 2 of the Periodic table. They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).〔.〕 They have very similar properties: they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure. Structurally, they have in common an outer s- electron shell which is full;.〔 that is, this orbital contains its full complement of two electrons, which these elements readily lose to form cations with charge +2, and an oxidation state (oxidation number) of +2. All the discovered alkaline earth metals occur in nature.〔(【引用サイトリンク】Abundance in Earth's Crust )〕 Experiments have been conducted to attempt the synthesis of element 120, the next potential member of the group, but they have all met with failure. == Characteristics == 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「Alkaline earth metal」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.