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鉺,化學元素也,符號為Er,原子序六十八。屬鑭系元素、稀土金屬,出於瑞典矽鈹釔礦中。色銀白,常存以化合物。
氧化態以正三為最常,時色粉紅,以熒光故,用諸激光;雜於玻璃,可作摻鉺光纖放大器。此外,亦用諸醫療,佐激光手術,以進其效,並減其誤。
聲音動静,具錄於維基共享︰鉺 |
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