Magnesium is a divalent cation, with oxidation number +2, and bromide is a monovalent anion, with oxidation number -1 for each of the two ions. Thus the compound is electrically neutral.
In MgBr2, the magnesium ion (Mg) has an oxidation number of +2, while the bromide ion (Br) has an oxidation number of -1.
In the compound MgBr2, magnesium (Mg) has an oxidation state of +2 and bromine (Br) has an oxidation state of -1. This is because the overall charge of the compound is neutral, so the sum of the oxidation states of each element must equal zero.
The oxidation number of the nitrite ion (NO2-) is -1. The oxidation number of nitrogen in the nitrite ion is +3, and each oxygen atom has an oxidation number of -2.
The oxidation number of carbonate ion (CO3) is -2. Each oxygen atom has an oxidation number of -2, and the sum of the oxidation numbers in the ion must equal the charge of the ion, which is -2.
In ionic compounds, the oxidation number is determined by the charge associated with each ion. For cations, the oxidation number is the same as the charge on the ion. For anions, the oxidation number is the negative of the charge on the ion. The sum of the oxidation numbers in an ionic compound must be zero.
In MgBr2, the magnesium ion (Mg) has an oxidation number of +2, while the bromide ion (Br) has an oxidation number of -1.
In the compound MgBr2, magnesium (Mg) has an oxidation state of +2 and bromine (Br) has an oxidation state of -1. This is because the overall charge of the compound is neutral, so the sum of the oxidation states of each element must equal zero.
The oxidation number of the nitrite ion (NO2-) is -1. The oxidation number of nitrogen in the nitrite ion is +3, and each oxygen atom has an oxidation number of -2.
The oxidation number of carbonate ion (CO3) is -2. Each oxygen atom has an oxidation number of -2, and the sum of the oxidation numbers in the ion must equal the charge of the ion, which is -2.
In ionic compounds, the oxidation number is determined by the charge associated with each ion. For cations, the oxidation number is the same as the charge on the ion. For anions, the oxidation number is the negative of the charge on the ion. The sum of the oxidation numbers in an ionic compound must be zero.
In the oxalate ion (C2O4^2-), each carbon atom has an oxidation number of +3, and each oxygen atom has an oxidation number of -2. The net charge of -2 on the ion results in an overall oxidation number of -2.
In dichromate ion (H2Cr2O7), the oxidation number of chromium (Cr) is +6. This is determined by the total charge of the ion (-2) and the oxidation number of oxygen (-2). Each hydrogen (H) contributes an oxidation number of +1.
The oxidation number of mercury in the mercurous ion (Hg₂²⁺) is +1. Each mercury atom in the mercurous ion carries a charge of +1.
This is the thiosulfate ion. Sulfur shows +6 oxidation number.
The oxidation number for each sulfur atom in peroxodisulfate ion (S2O8 2-) is +6 because oxygen has an oxidation number of -2, and the overall charge of the ion is 2-.
The oxidation state of Hydrogen in the hydronium ion is 1+ and the oxidation state of oxygen is 2-
The oxidation number of iodine in the iodate ion (IO3-) is +5. Each oxygen atom has an oxidation number of -2, giving a total of -6 for the three oxygen atoms. To neutralize the charge of -1 on the ion, the oxidation number of iodine must be +5.