Using the What is the bond order in O₂?

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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You will need to use the unfilled (unpopulated) molecular-orbital (MO) diagram for a homonuclear diatomic molecule or ion, such as O₂, F₂, O₂⁺, F₂⁺, O₂⁻, F₂⁻.

IMPORTANT: This diagram includes only valence orbitals.

### Diagram Explanation:
- The diagram consists of molecular orbitals, represented by lines and labels, indicating their energy levels.
- The left and right sides of the diagram show the atomic orbitals (2s and 2p) of two atoms.
- In the center, the molecular orbitals are depicted:
  - \(\sigma_{2s}\)
  - \(\sigma^*_{2s}\)
  - \(\sigma_{2p}\)
  - \(\pi_{2p}\), \(\pi_{2p}\)
  - \(\pi^*_{2p}\), \(\pi^*_{2p}\)
  - \(\sigma^*_{2p}\)

Using scratch paper, complete this diagram specifically for the \(O_2^-\) molecular anion, indicating the electron populations for all valence molecular orbitals. Using the completed diagram, answer the question: What is the bond order in \(O_2^-\)?

- Options for bond order:
  - 0
  - 0.5
  - 1
  - 1.5
  - 2
Transcribed Image Text:You will need to use the unfilled (unpopulated) molecular-orbital (MO) diagram for a homonuclear diatomic molecule or ion, such as O₂, F₂, O₂⁺, F₂⁺, O₂⁻, F₂⁻. IMPORTANT: This diagram includes only valence orbitals. ### Diagram Explanation: - The diagram consists of molecular orbitals, represented by lines and labels, indicating their energy levels. - The left and right sides of the diagram show the atomic orbitals (2s and 2p) of two atoms. - In the center, the molecular orbitals are depicted: - \(\sigma_{2s}\) - \(\sigma^*_{2s}\) - \(\sigma_{2p}\) - \(\pi_{2p}\), \(\pi_{2p}\) - \(\pi^*_{2p}\), \(\pi^*_{2p}\) - \(\sigma^*_{2p}\) Using scratch paper, complete this diagram specifically for the \(O_2^-\) molecular anion, indicating the electron populations for all valence molecular orbitals. Using the completed diagram, answer the question: What is the bond order in \(O_2^-\)? - Options for bond order: - 0 - 0.5 - 1 - 1.5 - 2
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