Write the electronic configurations of the following ions :
` (i) Cu^(+) (ii) Co^(2+) (iii) Cr^(3+) (iv) Mn^(2+)`

Explanation

To write the electronic configurations of the given ions, we will first determine the electronic configurations of the neutral atoms and then adjust for the charge of the ions.

### Step 1: Determine the atomic numbers and electronic configurations of the neutral atoms.

1. **Copper (Cu)**:
- Atomic number = 29
- Electronic configuration: \( \text{[Ar]} \, 3d^{10} \, 4s^1 \)

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