The species which does not exist is

Options

A. `[AlF_(6)]^(3-)`
B. `[GaF_(6)]^(3-)`
C. `[InF_(6)]^(3-)`
D. `[BF_(6)]^(3-)`

Explanation

To determine which species does not exist among the given options, we will analyze the hybridization and the ability of the central atom to accommodate the surrounding atoms based on its electronic configuration.

### Step-by-Step Solution:

1. **Identify the Elements**: The question involves species formed by elements from Group 13 (Boron, Aluminum, Gallium, Indium). We will focus on Boron (B), Aluminum (Al), Gallium (Ga), and Indium (In).

2. **Check for Valence Electrons**:
- Boron has 3 valence electrons.
...