Name the oxometal anions of the first series of the transition metals in which the metal exhibits the oxidation state equal to its group number.

Explanation

To solve the question, we need to identify the oxometal anions of the first series of transition metals where the oxidation state of the metal is equal to its group number. Here’s a step-by-step breakdown of the solution:

### Step 1: Identify the first series of transition metals
The first series of transition metals includes elements from Scandium (Sc, atomic number 21) to Zinc (Zn, atomic number 30). The relevant transition metals in this series are Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn.

### Step 2: Determine the group numbers of these metals
- Sc (Group 3)
- Ti (Group 4)
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