how can you find the oxidation number of an ion
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how can you find the oxidation number of an ion
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Answer:
In a polyatomic ion, the sum of the oxidation numbers of all atoms is equal to the overall charge on the ion. For example, in SO2−4, the oxidation numbers of S and O are +6 and −2, respectively. The sum of all oxidation numbers in the sulfate ion would be 1(+6)+4(−2)=−2, which is the charge of the ion.
Step-by-step explanation:
The oxidation number of a free element is always 0.
The oxidation number of a monatomic ion equals the charge of the ion.
The oxidation number of H is +1, but it is -1 in when combined with less electronegative elements.
The oxidation number of O in compounds is usually -2, but it is -1 in peroxides.
The oxidation state, sometimes referred to as oxidation number, describes the degree of oxidation of an atom in a chemical compound