How do you find the Valency of Transition Metals? (1 Viewer)

[StudyHard123]

I know for some such as Iron and Copper it's stated in Roman Numerals, but I also know there are standard ones as well. For example: Silver is +1, Nickel is +2, Zinc is +2.

Does anyone know more standard valencies, or where I can find all of them?

 

[Mathew587]

Sorry to disappoint you but there's not much you can do except memorise the most common one