In `XeF_(2),XeF_(4)" and "XeF_(6),` the number of the lone pairs of Xe respectively are

Options

A. 2, 3, 1
B. 1,2,3
C. 4, l, 2
D. 3, 2, 1

Explanation

To determine the number of lone pairs of electrons on xenon in the compounds XeF2, XeF4, and XeF6, we can follow these steps:

### Step 1: Determine the Valence Electrons of Xenon
Xenon (Xe) is a noble gas and has 8 valence electrons in its outer shell.

### Step 2: Analyze XeF2 (Xenon Difluoride)
- In XeF2, xenon forms bonds with 2 fluorine atoms.
- Each bond uses 1 electron from xenon, so 2 electrons are involved in bonding.
- Remaining electrons = 8 (total) - 2 (bonding) = 6 electrons.
- These 6 electrons can be grouped into 3 lone pairs (since each lone pair consists of 2 electrons).
- **Lone pairs in XeF2 = 3.**

### Step 3: Analyze XeF4 (Xenon Tetrafluoride)
- In XeF4, xenon forms bonds with 4 fluorine atoms.
- Each bond uses 1 electron from xenon, so 4 electrons are involved in bonding.
- Remaining electrons = 8 (total) - 4 (bonding) = 4 electrons.
- These 4 electrons can be grouped into 2 lone pairs.
- **Lone pairs in XeF4 = 2.**

### Step 4: Analyze XeF6 (Xenon Hexafluoride)
- In XeF6, xenon forms bonds with 6 fluorine atoms.
- Each bond uses 1 electron from xenon, so 6 electrons are involved in bonding.
- Remaining electrons = 8 (total) - 6 (bonding) = 2 electrons.
- These 2 electrons can be grouped into 1 lone pair.
- **Lone pairs in XeF6 = 1.**

### Conclusion
The number of lone pairs of xenon in XeF2, XeF4, and XeF6 are 3, 2, and 1, respectively.

### Final Answer
**The answer is: 3, 2, 1.**