A boy has reported the radii of `Cu, Cu ^(+) and Cu ^(2+)` as `0.096 nm, 0.122 nm and 0.072nm` respectively. However, it has been noticed that he interchanged the values by mistake. Assign the correct values to different species.

Explanation

To assign the correct values of atomic and ionic radii to Cu, Cu^+, and Cu^2+, we need to understand how ionic and atomic radii change based on the number of electrons and the effective nuclear charge. Here’s a step-by-step solution:

### Step 1: Understand the Species
- **Copper (Cu)** is a neutral atom with an equal number of protons and electrons.
- **Copper ion (Cu^+)** has lost one electron, resulting in a positive charge.
- **Copper ion (Cu^2+)** has lost two electrons, resulting in a higher positive charge.

### Step 2: Analyze the Given Radii
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