Correct the following statement by changing the underlined part of the sentence.
If R is the radius of the spheres forming closest packing arrangement, then radius r of the octahedral void will be `ul("0.225 R")`.

Explanation

To correct the statement regarding the radius of the octahedral void in a closest packing arrangement, we need to follow these steps:

### Step 1: Understand the Closest Packing Arrangement
In a closest packing arrangement, spheres are packed in such a way that they occupy the maximum possible volume. The two most common types of closest packing are face-centered cubic (FCC) and hexagonal close packing (HCP).

### Step 2: Identify the Radii of Voids
In a closest packing arrangement:
- The radius of the octahedral void (r) is related to the radius of the spheres (R) forming the packing.
...