From the Lewis structures of the species given, pick all of those in which the central atom obeys the octet rule. :Ci-B-CI: :CI: +1 H H-N-H H :F: :F-Br. :F: :ci: :CI-Si-CI: :C: O None of the Above

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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Question:**

From the Lewis structures of the species given, pick all of those in which the central atom obeys the octet rule.

**Options:**

1. **Structure A:** 
   - Central atom: Boron (B)
   - Surrounding atoms: Three Chlorines (Cl)
   - Electron pairs: Three single bonds between Boron and each Chlorine; no lone pairs on Boron.
   - Electrons around central atom: 6

2. **Structure B:**
   - Central atom: Nitrogen (N)
   - Surrounding atoms: Four Hydrogens (H)
   - Overall charge: +1
   - Electron pairs: Four single bonds between Nitrogen and each Hydrogen; no lone pairs on Nitrogen.
   - Electrons around central atom: 8

3. **Structure C:**
   - Central atom: Bromine (Br)
   - Surrounding atoms: Three Fluorines (F)
   - Electron pairs: Three single bonds between Bromine and each Fluorine; two lone pairs on Bromine.
   - Electrons around central atom: 10

4. **Structure D:**
   - Central atom: Silicon (Si)
   - Surrounding atoms: Four Chlorines (Cl)
   - Electron pairs: Four single bonds between Silicon and each Chlorine; no lone pairs on Silicon.
   - Electrons around central atom: 8

5. **None of the Above** (Checkbox)

**Instructions:**

Select the checkbox next to each structure where the central atom obeys the octet rule. The octet rule states that atoms are most stable when surrounded by eight electrons in their valence shell.
Transcribed Image Text:**Question:** From the Lewis structures of the species given, pick all of those in which the central atom obeys the octet rule. **Options:** 1. **Structure A:** - Central atom: Boron (B) - Surrounding atoms: Three Chlorines (Cl) - Electron pairs: Three single bonds between Boron and each Chlorine; no lone pairs on Boron. - Electrons around central atom: 6 2. **Structure B:** - Central atom: Nitrogen (N) - Surrounding atoms: Four Hydrogens (H) - Overall charge: +1 - Electron pairs: Four single bonds between Nitrogen and each Hydrogen; no lone pairs on Nitrogen. - Electrons around central atom: 8 3. **Structure C:** - Central atom: Bromine (Br) - Surrounding atoms: Three Fluorines (F) - Electron pairs: Three single bonds between Bromine and each Fluorine; two lone pairs on Bromine. - Electrons around central atom: 10 4. **Structure D:** - Central atom: Silicon (Si) - Surrounding atoms: Four Chlorines (Cl) - Electron pairs: Four single bonds between Silicon and each Chlorine; no lone pairs on Silicon. - Electrons around central atom: 8 5. **None of the Above** (Checkbox) **Instructions:** Select the checkbox next to each structure where the central atom obeys the octet rule. The octet rule states that atoms are most stable when surrounded by eight electrons in their valence shell.
**Resonance Structures**

Resonance Structures are ways to represent the bonding in a molecule or ion when a single Lewis structure fails to describe accurately the actual electronic structure.

[Diagram Description: The diagram shows two resonance structures for the nitrite ion (\( \text{NO}_2^-\)). Each structure involves nitrogen centrally bonded to two oxygen atoms. In one structure, one of the nitrogen-oxygen bonds is a single bond, while the other is a double bond, and then vice versa in the other structure. The oxygen atoms have lone pairs represented by dots, and a double-headed arrow between the structures indicates resonance.]

Equivalent resonance structures occur when there are identical patterns of bonding within the molecule or ion. The actual structure is a composite, or **resonance hybrid**, of the equivalent contributing structures.

**Draw Lewis structures** for phosphoric acid and for the nitrite ion in which the central atom obeys the octet rule.

- How many equivalent Lewis structures are necessary to describe the bonding in \( \text{PO(OH)}_3 \)? [Blank Space]
- How many equivalent Lewis structures are necessary to describe the bonding in \( \text{NO}_2^- \)? [Blank Space]
Transcribed Image Text:**Resonance Structures** Resonance Structures are ways to represent the bonding in a molecule or ion when a single Lewis structure fails to describe accurately the actual electronic structure. [Diagram Description: The diagram shows two resonance structures for the nitrite ion (\( \text{NO}_2^-\)). Each structure involves nitrogen centrally bonded to two oxygen atoms. In one structure, one of the nitrogen-oxygen bonds is a single bond, while the other is a double bond, and then vice versa in the other structure. The oxygen atoms have lone pairs represented by dots, and a double-headed arrow between the structures indicates resonance.] Equivalent resonance structures occur when there are identical patterns of bonding within the molecule or ion. The actual structure is a composite, or **resonance hybrid**, of the equivalent contributing structures. **Draw Lewis structures** for phosphoric acid and for the nitrite ion in which the central atom obeys the octet rule. - How many equivalent Lewis structures are necessary to describe the bonding in \( \text{PO(OH)}_3 \)? [Blank Space] - How many equivalent Lewis structures are necessary to describe the bonding in \( \text{NO}_2^- \)? [Blank Space]
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