Question

6
name:
molecule to be built\thint\tmolecular sketch or a screenshot of the molecule
hydrogen gas (h₂) (very explosive)\t1. how many h atoms are there?
\t2. how many bonds can each h atom make?
oxygen gas molecules (o₂) (what most living things breathe in)\t1. how many o atoms are there?
\t2. how many bonds can each o atom make?
nitrogen gas molecules (n₂) (non - toxic & non - combustible gas)\t1. how many n atoms are there?
\t2. how many bonds can each n atom make?
ammonia gas (nh₃) (used as fertilizers)\t1. how many n atoms are there?
\t2. how many bonds can each n atom make?
\t3. how many h atoms are there?
\t4. how many bonds can each h atom make?

Explanation:

Step1: Analyze Hydrogen gas ($H_2$)

1. In $H_2$, there are 2 H atoms.
2. Each H atom has 1 valence - electron and can make 1 bond to achieve a duet (stable electron configuration).

Step2: Analyze Oxygen gas ($O_2$)

1. In $O_2$, there are 2 O atoms.
2. Each O atom has 6 valence - electrons and needs 2 more electrons to achieve an octet. So each O atom can make 2 bonds.

Step3: Analyze Nitrogen gas ($N_2$)

1. In $N_2$, there are 2 N atoms.
2. Each N atom has 5 valence - electrons and needs 3 more electrons to achieve an octet. So each N atom can make 3 bonds.

Step4: Analyze Ammonia gas ($NH_3$)

1. In $NH_3$, there is 1 N atom.
2. Each N atom can make 3 bonds to achieve an octet.
3. In $NH_3$, there are 3 H atoms.
4. Each H atom can make 1 bond to achieve a duet.

Answer:

Hydrogen gas ($H_2$):

1. 2 H atoms
2. 1 bond per H atom

Oxygen gas ($O_2$):

1. 2 O atoms
2. 2 bonds per O atom

Nitrogen gas ($N_2$):

1. 2 N atoms
2. 3 bonds per N atom

Ammonia gas ($NH_3$):

1. 1 N atom
2. 3 bonds per N atom
3. 3 H atoms
4. 1 bond per H atom