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

(`a`) `22.4 L N_(2)` gas at `STP=1 mol N_(2)`
`=N_(0)` molecules of `N_(2)`
`=2N_(0)` atoms of `N`
(`b`) `(500xx2)/(1000)=1 mol` of `NH_(3)`
`=N_(0)` molecules of `NH_(3)`
`=N_(0)` atoms of `N`
(`c`) `1 mol` of `NH_(4)Cl=N_(0)` atoms of `N`
(`d`) `6.02xx10^(23) NO_(2)` molecules `=6.02xx10^(23)` atoms of `N`