An element with molar mass `2.7 xx 10^(2) kg mol^(-1)` forms a `2.7 xx 10^(3) kg^(-3)`, what is the nature of the cubic unit cell?

Explanation

To determine the nature of the cubic unit cell for the given element, we can use the relationship between density, molar mass, and the number of atoms in the unit cell. Here are the steps to solve the problem:

### Step 1: Write down the formula for density
The density (\( \rho \)) of a solid can be expressed using the formula:
\[ \rho = \frac{Z \cdot M}{A \cdot N_A} \]
where:
...