Question

draw the lewis structure for the polyatomic nitrite no−2 anion. be sure to include all resonance structures that satisfy the octet rule.

Answer 1

To draw the Lewis structure for the polyatomic nitrite anion (NO-2), we need to follow specific steps and consider resonance. The structure consists of three resonance structures to satisfy the octet rule.

Step-by-step explanation:

Lewis Structure of Polyatomic Nitrite Anion (NO-2):

To draw the Lewis structure of the polyatomic nitrite anion (NO-2), we need to follow these steps:

1. Count the total number of valence electrons: Nitrogen contributes 5, Oxygen contributes 6 each, and there is a negative charge (-2), so the total is 24.
2. Connect the atoms with single bonds.
3. Place the remaining electrons around the atoms, starting with the outer atoms. Ensure that each atom has an octet (except hydrogen, which has 2 electrons).
4. If there are electrons remaining, place them on the central atom (Nitrogen) to satisfy the octet rule.
5. If the central atom does not have an octet, form double or triple bonds to satisfy the octet rule.

For the nitrite anion (NO-2), there are three resonance structures that satisfy the octet rule. They can be represented as follows:

• Structure 1: N-O single bond and N=O double bond
• Structure 2: N-O double bond and N=O single bond
• Structure 3: N-O single bond and N=O single bond (Nitrogen with a lone pair)

These three structures contribute to the overall resonance hybrid structure of the nitrite anion.