`CsBr` has bcc stucture with edge length `4.3` A .The shortest interionic distance in between Cs and Br is

Options

A. 3.72 Å
B. 1.86 Å
C. 7.44 Å
D. 4.3Å

Explanation

To find the shortest interionic distance between cesium (Cs) and bromine (Br) in cesium bromide (CsBr) with a body-centered cubic (BCC) structure and an edge length of 4.3 Å, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structure**:
CsBr has a body-centered cubic (BCC) structure. In a BCC lattice, there is one atom at each corner of the cube and one atom at the center of the cube.

2. **Understand the Relationship Between Edge Length and Atomic Radius**:
...