One the basic of ground electronic configuration, arrange the following molecules in the oder of increasing `O -O` bond lengths `KO_(2), O_(2) ,O_(2)[AsF_(6)]` .

Explanation

To arrange the molecules \( KO_2 \), \( O_2 \), and \( O_2[AsF_6] \) in the order of increasing \( O-O \) bond lengths based on their ground electronic configurations, we can follow these steps:

### Step 1: Identify the oxidation states and electronic configurations
- **For \( KO_2 \)**: The potassium ion \( K^+ \) does not affect the oxygen. The \( O_2 \) in \( KO_2 \) exists as \( O_2^{2-} \) (superoxide ion).
- **For \( O_2 \)**: This is the neutral molecule with no charge.
- **For \( O_2[AsF_6] \)**: The \( AsF_6 \) is a complex anion, and in this case, the \( O_2 \) is in the form of \( O_2^{+} \) (dioxygen cation).

### Step 2: Write the electronic configurations
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