鿔
鎶（Copernicium）是一种人工合成个超重元素，化学符号是Cn，原子序是112。鎶个放射性极强，会通过α衰变成为273Ds，半衰期最长个鿔同位素为285Cn，有29秒。垃拉德国达姆施塔特重离子研究所（GSI），由西格･霍夫曼搭维克托･尼诺夫领导个研究团队拉1996年首次合成出鎶。
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