The oxidation state is +3.
-1, 0, 1, 2, 3, 4 and 5 oxidation states
The oxidation state of N in NH4+ is -3. Nitrogen typically has an oxidation state of -3 when it is in the ammonium ion (NH4+).
Sodium (Na), Aluminum (Al), and Cobalt (Co) are elements that can exhibit more than one valence state. Sodium can exhibit +1 and +2 states, Aluminum can exhibit +3 and +2 states, and Cobalt can exhibit +2 and +3 states. Magnesium (Mg) typically exhibits a +2 valence state.
Cryolite, with the chemical formula Na3AlF6, contains sodium (Na), aluminum (Al), and fluorine (F). In this compound, sodium has an oxidation state of +1, aluminum has an oxidation state of +3, and fluorine has an oxidation state of -1. Therefore, the overall oxidation states are: Na (+1), Al (+3), and F (-1).
Technetium oxidation states are between -1 and +7; the most usual valences are +3, +4 and +7.
The oxidation state of cobalt(III) is +3. This means that cobalt has lost three electrons.
+3
Cobaltic chloride refers to cobalt(III) chloride, where cobalt has an oxidation state of +3. Cobaltous chloride, on the other hand, refers to cobalt(II) chloride, where cobalt has an oxidation state of +2. The main difference is in the oxidation state of cobalt in the two compounds.
-1, 0, 1, 2, 3, 4 and 5 oxidation states
Cobalt is a transition metal. Its oxidation states are 2 (3).
The cobalt in the formula given has an oxidation number of +3, so that the total charge of the two cobalt ions will balance the total charge of the 3 oxide ions, which have an oxidation number of -2 each.
Co = +2 oxidation C = +4 oxidation O = -2 oxidation
0 in elemental form, +2 and +3 in its compounds
Variable oxidation state refers to (an element) having more than 1 oxidation states. e.g. Cobalt having oxidation states +2 & +3, similarly Fe having +2 & +3, Cr +2, +3 & +6
-1, 0, 1, 2, 3, 4 and 5 oxidation states
+3
The formula for cobalt(II) fluoride is CoF2, where cobalt has a +2 oxidation state and fluorine has a -1 oxidation state.