Coordinating number of `Na^(+)` in `NaCl` is

Options

A. 6,6
B. 6,8
C. 8,8
D. 8,6

Explanation

To determine the coordination number of \( \text{Na}^+ \) in \( \text{NaCl} \), we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Structure of NaCl**:
- Sodium chloride (NaCl) crystallizes in a face-centered cubic (FCC) lattice structure. In this structure, the chloride ions (\( \text{Cl}^- \)) occupy the corners and the face centers of the cubic unit cell.

2. **Identifying the Positions of Ions**:
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