Final answer:
The correct answer is option B. The charge on manganese in MnF₃ is +3, balancing the three -1 charges from the fluorine atoms for the compound to remain neutral.
Step-by-step explanation:
The charge on manganese in MnF₃ is 3+. Here's how we determine this:
- Fluorine (F) has an oxidation number of -1.
- In MnF₃, there are three fluorine atoms, giving a total negative charge of -3.
- Since the compound is neutral, the charge on the manganese (Mn) must be the same but positive to balance the negative charge from fluorine.
- Thus, the oxidation state of manganese in MnF₃ is +3, making the charge on manganese 3+.