lanthanide elements 中文意思是什麼
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Rare earth elements ( rees ) consist of lanthanide series with atomic numbers from 57 to 71, as well as scandium ( atomic number 21 ) and yttrium ( atomic number 39 )
稀土是指原子序數從57到71的鑭系元素以及與其同族的鈧和釔，共有17個元素。
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