Which of the following contains gretest number of `N` atoms?

Options

A. `22.4 L` nitrogen gas at `STP`
B. `500 mL` of `2.00 M NH_(3)`
C. `1.00 mol` of `NH_(4)Cl`
D. `6.02xx10^(23)` molecules of `NO_(2)`

Explanation

To determine which of the given options contains the greatest number of nitrogen (N) atoms, we will analyze each option step by step.

### Step 1: Analyze 22.4 liters of N2 at STP
- At standard temperature and pressure (STP), 22.4 liters of any gas corresponds to 1 mole of that gas.
- Since N2 (nitrogen gas) consists of 2 nitrogen atoms per molecule, 1 mole of N2 contains:
\[ 1 \text{ mole of } N2 \times 2 \text{ moles of } N = 2 \text{ moles of } N \]
...