Question

1. the electron dot diagram for a molecule of nitrogen, n₂(g) would contain...

a double bond because each nitrogen atom has 1 lone pair of electrons to share.
a double bond because each nitrogen has 2 bonding electrons to share.
a triple bond because each nitrogen has 3 bonding electrons to share.
a triple bond because each nitrogen atom would have 3 lone pairs of electrons to share.

Explanation:

Step1: Recall nitrogen's valence electrons

Nitrogen has 5 valence electrons.

Step2: Analyze bonding to achieve octet

To achieve an octet (8 - electron outer - shell), each nitrogen atom needs to share 3 electrons with the other nitrogen atom in $N_2$.

Step3: Determine bond type

Sharing 3 pairs of electrons results in a triple bond.

Answer:

A triple bond because each nitrogen has 3 bonding electrons to share.