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可怕的误用: 全面解析杀人的科学(图)(3)
2007-03-19 09:45:24 新知客   发表评论
  
13995918_2007031909462313458000.jpg

那些致命的放射性元素

放射性元素钋210毒性比氰化物高2.5亿倍,与钋元素致毒机理类似的剧毒元素还包括锕系元素的锕、钍、镤、铀,以及铀以后的11种超铀元素镎、钚、镅、锔、锫、锎、锿、镄、钔、锘和铹。超铀元素是用人工核反应合成的。

锕系元素的毒性和辐射危害极大,尤其是人工合成的锕系超铀元素。以钚为例,一片阿司匹林大小的钚足以毒死2亿人,5 克钚足以毒死全人类。但锿以后的锕系元素由于半衰期极短,仅应用于实验室研究和鉴定元素性质。
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