What is the common oxidation state of transition metals in their compounds?

What is the common oxidation state of transition metals in their compounds?

Step 1: Understand what oxidation state means. It refers to the charge of an atom in a compound.
Step 2: Know that transition metals are elements found in the middle of the periodic table.
Step 3: Recognize that transition metals can lose electrons to form positive charges.
Step 4: Identify that transition metals have electrons in two energy levels: the 4s and 3d orbitals.
Step 5: Learn that when transition metals form compounds, they often lose two electrons from the 4s orbital.
Step 6: Conclude that the common oxidation state for transition metals in their compounds is +2.

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