The electronic configuration of `Co^(2+)` and `Cu^(2+) is d^7` and `d^(9)` respectively. Which of these ions will be more paramagnetic ?

Explanation

To determine which ion, Co²⁺ or Cu²⁺, is more paramagnetic, we need to analyze their electronic configurations and the number of unpaired electrons present in each ion.

### Step-by-Step Solution:

1. **Identify the Electronic Configurations:**
- The electronic configuration of Co²⁺ is \( [Ar] 3d^7 \).
- The electronic configuration of Cu²⁺ is \( [Ar] 3d^9 \).

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