Question

Would someone help me understand how to name the transition metals?

Answer 1

say you have MnF3. you know the charge (oxidation number) of the fluorine will always be -1. therefore, since you have three of them, the total negative charge is -3. since the molecule is neutral (is not an ion), you know that the total positive charge must be +3 in order for the overall charge to be 0. therefore, +3 must be the charge on the manganese, making it manganese (III).

Basically, you work first with the element that has a more or less constant charge, such as F, O, H... Then you add the roman numerals to the element which could vary in charge (many transition metals...) to balance the overall charge of the molecule.

Answer 2

How many electrons do you guys have?
3?
Fine, then I'm Ironman 3, I mean iron(III), man.