The charge on the manganese in the salt MnF₃is _ .

Question

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In the salt MnF₃, there is one manganese atom (Mn) which is combined with various other elements. To find the charge on manganese, we need to determine the oxidation states of other elements in the salt. Oxygen (O) usually has an oxidation state of -2 in salts, except in the case of peroxides where it has an oxidation state of -1, and superoxides where it has an oxidation state of -1/2. Therefore, the three oxygen atoms in the salt contribute a total of -6 to the overall charge. Fluorine (F) usually has an oxidation state of -1 in salts. Therefore, the two fluorine atoms in the salt contribute a total of -2 to the overall charge. We can use this information to calculate the oxidation state of manganese. Let x be the oxidation state of manganese: x + (-2) + (-1) + 3(-1) + (-2) + x + (-1) + 0 + (-1) = 0 2x - 10 = 0 2x = 10 x = +5 However, manganese usually has oxidation states ranging from -3 to +7, so it is unlikely to have an oxidation state of +5 in this salt. Instead, we can consider the fact that fluorine is highly electronegative and usually takes an oxidation state of -1 in salts. This means that the manganese atom is more likely to have a positive oxidation state to balance out the negative charges from the oxygen and fluorine atoms. The only choice that represents a positive oxidation state for manganese is +3, so the answer is (D) +3.

The Charge on the Manganese in the Salt MnF3 is

The Charge on the Manganese in the Salt MnF₃is