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氧元素有正价离子么
更新时间: 2020-07-04 00:00:00  

氧和氟的化合物中存在正价离子,如在二氟化氧中,氧元素显示为正二价离子;在二氟化二氧中,氧元素显示为正一价离子;在氟铂酸氧中,氧元素显示为正零点五价离子。

氧的化合价很特殊,一般为负二价和0价。而氧在过氧化物中通常为负一价。在超氧化物中为负二分之一价,臭氧化物中氧为负三分之一价,这里的化合价被称为表观化合价,即表面上看出来的化合价,没有实际的含义。

关键词: 元素 正价 离子

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