* Variable Charges: Transition metals are famous for having multiple oxidation states (charges). For example, iron (Fe) can be +2 (ferrous) or +3 (ferric).
* Context Matters: The specific charge a transition metal takes on depends on the chemical environment (what it's bonding with).
To answer your question, I need more context. Please provide:
* What type of compound are you interested in? (e.g., oxides, chlorides, etc.)
* Are you looking for a specific compound? (e.g., what are the transition metals in FeCl2, FeCl3, and CrCl3?)
* Do you have a particular charge in mind? (e.g., which three transition metals have a +2 charge?)
Once I have this information, I can help you identify the specific transition metals you're looking for.
