Consider an ionic solid MX with NaCl structure. Construct a new structure (Z) whose unit cell is constructed from the unit cell of MX following the sequential instructions given below. Neglect the charge balance. 1.Remove all the anions (X) except the central one 2.Replace all the face centered cations (M) by anions (X) 3.Remove all the corner cations (M) 4.Replace the central anion (X) with cation (M)
The value of `(("number of anion s ")/("number of cation s"))` in z is ________.

Explanation

To solve the problem, we will follow the instructions step by step and analyze the changes made to the unit cell of the ionic solid MX with NaCl structure.

### Step 1: Understanding the NaCl Structure
In the NaCl structure:
- The unit cell is face-centered cubic (FCC).
- Each unit cell contains 4 Na⁺ ions (cations) and 4 Cl⁻ ions (anions).
- The cations are located at the corners and the face centers of the cube.

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