The compound of Xenon with the lowest bond angle

Options

A. `XeF_2`
B. `XeO_3`
C. `XeO_4`
D. `XeF_4`

Answer

To determine the compound of Xenon with the lowest bond angle, we will analyze the bond angles of the given compounds: Xenon F2, Xenon O3, Xenon O4, and Xenon F4.

### Step-by-Step Solution:

1. **Identify the Compounds:**
- The compounds we need to analyze are:
- Xenon F2
- Xenon O3
- Xenon O4
- Xenon F4

2. **Determine the Structure of Each Compound:**
- **Xenon F2:**
- Xenon (Xe) has 8 valence electrons. In Xenon F2, it forms 2 bonds with fluorine and has 3 lone pairs of electrons.
- The structure is linear due to the three lone pairs, resulting in a bond angle of 180°.

- **Xenon O3:**
- In Xenon O3, Xenon forms 3 bonds with oxygen and has 1 lone pair.
- The molecular geometry is pyramidal, leading to a bond angle of approximately 103°.

- **Xenon O4:**
- For Xenon O4, Xenon forms 4 bonds with oxygen and has no lone pairs.
- The geometry is tetrahedral, resulting in a bond angle of about 109.28°.

- **Xenon F4:**
- In Xenon F4, Xenon forms 4 bonds with fluorine and has 2 lone pairs.
- The structure is square pyramidal, which results in a bond angle of 90°.

3. **Compare the Bond Angles:**
- Xenon F2: 180°
- Xenon O3: 103°
- Xenon O4: 109.28°
- Xenon F4: 90°

4. **Identify the Compound with the Lowest Bond Angle:**
- Among the bond angles calculated, the lowest bond angle is found in Xenon F4, which has a bond angle of 90°.

### Conclusion:
The compound of Xenon with the lowest bond angle is **Xenon F4**, with a bond angle of **90°**.

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