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氧化数
Also known as oxidation state
number that describes degree of oxidation of an atom in a chemical compound; the hypothetical charge that an atom would have if all bonds to atoms of different elements were fully ionic
AI overview
An oxidation number is a number assigned to an atom in a chemical compound that represents how many electrons it has lost or gained, based on the assumption that all its bonds are completely ionic. This system helps chemists track the movement of electrons during chemical reactions and predict how different substances will interact with each other.
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- Oxidation states
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Article · 中文
氧化数（英文：Oxidation number）用来表示化合物中，所有配体及电子对都被去掉后，中心原子所带的电荷数。氧化数这个概念被用于无机化学命名法中。标明氧化数使用罗马数字，并且省略正氧化数的正号。书写时既可以将氧化数写成上标标在元素符号后面，如 FeIII，也可将氧化数写在括号内标在元素名称后面，如铁（III），元素名称与括号之间不留空格。 氧化数通常在数值上等于氧化态。但在有些情况下，配体不如中心原子电负性强（如铱膦配合物），因此氧化数与氧化态不相等。
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