Ammonia is made up of hydrogen and nitrogen atoms. The ratio of hydrogen to nitrogen atoms in ammonia is 3:1 What fraction of the atoms . in ammonia are nitrogen atoms?

## Step 1: Identify the ratio of hydrogen to nitrogen atoms### The given ratio of hydrogen to nitrogen atoms in ammonia is .## Step 2: Determine the total number of atoms in one molecule of ammonia### In one molecule of ammonia (NH ), there are 3 hydrogen atoms and 1 nitrogen atom, making a total of atoms.## Step 3: Calculate the fraction of nitrogen atoms### The fraction of nitrogen atoms is the number of nitrogen atoms divided by the total number of atoms. This is .