Density of Mn is more/ less than Fe.

Explanation

To determine whether the density of manganese (Mn) is more or less than that of iron (Fe), we can follow these steps:

### Step 1: Understand the concept of density
Density is defined as mass per unit volume. It can be mathematically expressed as:
\[ \text{Density} = \frac{\text{Mass}}{\text{Volume}} \]

### Step 2: Compare the atomic masses of Mn and Fe
- The atomic mass of manganese (Mn) is approximately 54.94 g/mol.
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