Transition metal question

[John_Richey_4A]

Is there a general rule of thumb how many valence electrons transition metals can lose?

[Rachel Dang 1H]

I don't know if there is a rule of thumb per say but generally atoms want to achieve a full valence shell, whether that be by losing or gaining through bonds. So rather than a general number I believe it depends on its position in the periodic table and how many valence electrons it has.

[Eunice Lee 1A]

Often times, the amount can vary depending on the transition metal. Usually, it's just a matter of memorizing which ones tend to lose how many electrons.

[Hannah Yates 1K]

there’s no rule that I know of, but I do know that when we do nomenclature of molecules, the name gives the number of valence electrons that the atom is loosing. For example, Copper (II) Oxide is the nomenclature for CuO. The nomenclature gives that Copper looses 2 electron.