For a cubic lattice edge length of unit cell is `5A^(0)` and density is `2gcc^(-1)`. Calculate the radius of an atom, if gram atomic weight is 75 g `mol^(-1)`.

Explanation

To solve the problem, we need to calculate the radius of an atom in a cubic lattice given the edge length of the unit cell, the density, and the gram atomic weight. Here’s a step-by-step solution:

### Step 1: Understand the given data
- Edge length of the unit cell (a) = 5 Å (angstroms)
- Density (d) = 2 g/cm³
- Gram atomic weight (M) = 75 g/mol

### Step 2: Convert the edge length to cm
...