+1 for Na
-1 for Br
In NaBr, sodium (Na) has an oxidation number of +1 since it belongs to group 1 of the periodic table. Bromine (Br) has an oxidation number of -1 since it is a halogen.
The oxidation number of Li in LiBr is +1, and the oxidation number of Br is -1.
If Br had an oxidation number of +7, the net charge on the ion would be +1, and not -1. Thus, the oxidation number for Br in BrO3- should be 5+.
The oxidation number of Br in ZnBr2 is -1. In ZnBr2, zinc (Zn) has an oxidation number of +2, so the two bromine (Br) atoms each have an oxidation number of -1 to balance the charge of the compound.
The oxidation number of Br in BrO3 is +5. This is because the oxidation number of oxygen is usually -2, and since there are three oxygen atoms in BrO3, the total negative charge from oxygen is -6. To balance the charge of the compound which is neutral, the oxidation number of Br is therefore +5.
The oxidation number of Br in KBrO3 is +5. This is because oxygen typically has an oxidation number of -2 and the overall compound has a neutral charge. Since there is only one Br atom in KBrO3 and the oxidation numbers of K and O are known, the oxidation number of Br can be calculated as +5 to balance the overall charge.
-2 for each O, +5 for Br
The Potassium (K) has an oxidation number of +1. The Bromine (Br) has an oxidation number of -1.
In NaBrO2, the oxidation numbers are as follows: Na is +1, Br is +5, O is -2.
+1 for each Na -1 for oxygen (as it is peroxide)
The oxidation number of Br- is -1. Bromine typically has an oxidation state of -1 when it forms an ion by gaining one electron.
The oxidation number of Cs (Cesium) is +1, and the oxidation number of Br (Bromine) is -1. In CsBr, Cesium donates one electron to Bromine, resulting in Cs having an oxidation number of +1 and Br having an oxidation number of -1 in the compound.