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アルカリ金属
H by member — last modified 2007-03-19 14:50
水素: 宇宙で最も多い元素、地球表面や生体で3番目に多い元素
Li by member — last modified 2007-03-19 14:50
 
Na by member — last modified 2007-03-19 14:50
ナトリウム: 食塩や炭酸ソーダの成分
K by member — last modified 2007-03-19 14:50
カリウム: カリウムとは中世ラテン語由来で、英語ではポタシウム
Rb by member — last modified 2007-03-19 14:50
 
Cs by member — last modified 2007-03-19 14:50
 
Fr by member — last modified 2007-03-19 14:50
 

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