Refer to the following diatomic species

(A) Li2

(B) B2

(C) N2

(D) O2

(E) F2

Has a bond order of 2

Question

Refer to the following diatomic species

(A) Li2

(B) B2

(C) N2

(D) O2

(E) F2

Has a bond order of 2

BlackTom AI · Accepted Answer

First, let's restate the question and the options to ensure clarity. The task asks which diatomic species has a bond order of 2, and the provided options to evaluate are: N2, I2, O2, and B2.
Option 1: N2. Nitrogen gas features a triple bond, which corresponds to a bond order of 3. Therefore this option is not correct for a bond order of 2, since the bond strength is higher than a double bond. 
Option 2: I2. Iodine molecule typically forms a single bond in most descriptions, giving a bond order of 1. This makes it inconsistent with a bond order of 2. 
Option 3: O2. Oxygen has a double bond in the typical diatomic picture, corresponding to a bond order of 2. According to molecular orbital considerations, the O2 bond order is calculated as (number of bonding electrons − number of antibonding electrons)/2, which yields 2 for O2. This matches the requested bond order. 
Option 4: B2. Dibromine? In the context of boron, B2 also yields a low bond order, commonly 1, due to the electron configuration leading to a weaker bond compared to a double bond. Thus it does not have bond order 2. 
In summary, the only option among the provided choices that aligns with a bond order of 2 is O2, since it is characterized by a double bond and a bond order of 2. The other species—N2 with bond order 3, I2 with bond order 1, and B2 with bond order typically 1—do not fit the criterion.

AP Chemistry A Unit 2 Review Quiz

Refer to the following diatomic species (A) Li2 (B) B2 (C) N2 (D) O2 (E) F2 Has a bond order of 2

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With respect to the carbon-oxygen bonds, CO32– has a bond length and a bond order compared to H2CO.

List the following molecules in order of increasing bond order: 1. C=C 2. C-C 3. CΞC

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AP Chemistry A Unit 2 Review Quiz

Refer to the following diatomic species (A) Li2 (B) B2 (C) N2 (D) O2 (E) F2 Has a bond order of 2

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类似问题

With respect to the carbon-oxygen bonds, CO32– has a __________ bond length and a __________ bond order compared to H2CO.

List the following molecules in order of increasing bond order: 1. C=C 2. C-C 3. CΞC

List the following molecules in order of increasing bond order: 1. C=C 2. C-C 3. CΞC

Question at position 11 Which of the following has a Lewis structure in which at least one bond has a bond order ≠ 1? For species with halogen atoms, consider only Lewis structures with zero formal charges on the halogen atoms. OF2 ICl4– AsF3 HNO (N is the central atom)

Question at position 2 An N≡N bond has a __________________bond order, ________________bond length, and ________________bond energy than a N═N bond. higher, longer, greater lower, longer, greater higher, longer, smaller higher, shorter, greater lower, longer, smaller lower, shorter, greater

更多留学生实用工具

希望你的学习变得更简单

With respect to the carbon-oxygen bonds, CO32– has a bond length and a bond order compared to H2CO.

Question at position 2 An N≡N bond has a __bond order, bond length, and bond energy than a N═N bond. higher, longer, greater lower, longer, greater higher, longer, smaller higher, shorter, greater lower, longer, smaller lower, shorter, greater