Which one of the following will have largest number of atoms?
a. `1 g Au(s)`
b. `1g Na_(4)(s)`
c. `1 g Li(s)`
d. `1 g Cl_(2)(g)`

Explanation

To determine which of the given substances has the largest number of atoms in 1 gram, we will calculate the number of moles of each substance and then convert that to the number of atoms.

### Step-by-Step Solution:

1. **Calculate the number of moles for each substance:**
- The number of moles (n) can be calculated using the formula:
\[
n = \frac{\text{mass (g)}}{\text{molar mass (g/mol)}}
...