MgO has a structure of NaCl and TiCl has the structure of CsCl. What are the coordination number of ions in each (MgO and TiCl)

Explanation

To determine the coordination numbers of ions in MgO and TiCl, we can analyze their structures based on the information provided.

### Step-by-Step Solution:

1. **Understanding the Structure of MgO:**
- MgO has a structure similar to NaCl. In the NaCl structure, each sodium ion (Na⁺) is surrounded by six chloride ions (Cl⁻) in an octahedral arrangement.
- Therefore, the coordination number of Na⁺ in NaCl is 6, and similarly, the coordination number of Cl⁻ is also 6.

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