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QuestionChemistry

What is the formal charge on manganese in the permanganate ion?
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Answer

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Step 1:
I'll solve this step-by-step using proper LaTeX notation:

Step 2:
: Identify the permanganate ion structure

- The permanganate ion has the chemical formula $$MnO_{4}^{-}
- This means we have one manganese atom and four oxygen atoms with a total charge of - 1

Step 3:
: Determine the oxidation state of oxygen

- Oxygen typically has an oxidation state of $$-2$$ in most compounds
- With four oxygen atoms, the total oxygen contribution is 4 \times (- 2) = - 8

Step 4:
: Calculate the manganese formal charge

- Solve for $$x$$: $$x = -1 + 8 = +7
- Oxygen contribution is - 8

Step 5:
: Verify the oxidation state

- The oxidation state of manganese is indeed $$+7$$, which matches our formal charge calculation

Final Answer

The formal charge on manganese in the permanganate ion is + 7.