Gold (atomic mass = 197 u) has atomic radius = 0.144 nm. It crystallises in face centred unit cell. Calculate the density of gold. (No = `6.022xx10^(23)mol^(-1))`

Explanation

To calculate the density of gold, we will follow these steps:

### Step 1: Convert Atomic Radius to Centimeters
Given the atomic radius \( R = 0.144 \) nm, we need to convert it to centimeters.

\[ R = 0.144 \, \text{nm} = 0.144 \times 10^{-9} \, \text{m} = 0.144 \times 10^{-7} \, \text{cm} \]
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