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.

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

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

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

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