銪,化學元素也,符號為Eu,原子序六十三。屬鑭系元素、稀土金屬。呈銀色、頗硬。庶幾無毒,見異於重金屬。處空氣與水之中,亟於氧化。有類諸鑭系元素,氧化態以正三為最常,正二次之。而銪二價鹽,皆為還原劑。其化合物可生磷光。
宇宙之中,所佔幾稀,百億物質,僅有其五。
聲音動静,具錄於維基共享︰銪 |
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