Homework Help and please explain: Draw the molecular orbital energy level diagrams and write the electron configurations of (a) Be2 (b) B2 (c) C2- (d) F2+ Determine the HOMO and LUMO in each case.

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Homework Help and please explain: Draw the molecular orbital energy level diagrams and write the electron configurations of (a) Be2 (b) B2 (c) C2- (d) F2+ Determine the HOMO and LUMO in each case.
**Problem 5: Molecular Orbital Theory**

**Task:** Draw the molecular orbital energy level diagrams and write the electron configurations for the following diatomic molecules:
- (a) \( \text{Be}_2 \)
- (b) \( \text{B}_2 \)
- (c) \( \text{C}_2^- \)
- (d) \( \text{F}_2^+ \)

**Objective:** Determine the Highest Occupied Molecular Orbital (HOMO) and the Lowest Unoccupied Molecular Orbital (LUMO) for each molecule.

**Instructions:**
1. Construct the molecular orbital energy level diagram for each molecule.
2. Fill in the electrons according to the corresponding number of electrons for each molecule.
3. Identify and label the HOMO and LUMO in each diagram.

**Notes:**
- Consider the ordering of molecular orbitals for diatomic molecules, typically starting with \(\sigma\), followed by \(\pi\), and their respective antibonding orbitals \(\sigma^*\), \(\pi^*\).
- Consider molecular orbitals such as \( \sigma_{1s}, \sigma_{1s}^*, \sigma_{2s}, \sigma_{2s}^*, \pi_{2p}, \sigma_{2p}, \pi_{2p}^*\), etc.
- Check for special cases of molecular orbital ordering in some elements, such as the reversal of \(\sigma_{2p}\) and \(\pi_{2p}\) orbitals.

This exercise helps in understanding the electronic structure and bonding properties of diatomic molecules through the application of molecular orbital theory.
Transcribed Image Text:**Problem 5: Molecular Orbital Theory** **Task:** Draw the molecular orbital energy level diagrams and write the electron configurations for the following diatomic molecules: - (a) \( \text{Be}_2 \) - (b) \( \text{B}_2 \) - (c) \( \text{C}_2^- \) - (d) \( \text{F}_2^+ \) **Objective:** Determine the Highest Occupied Molecular Orbital (HOMO) and the Lowest Unoccupied Molecular Orbital (LUMO) for each molecule. **Instructions:** 1. Construct the molecular orbital energy level diagram for each molecule. 2. Fill in the electrons according to the corresponding number of electrons for each molecule. 3. Identify and label the HOMO and LUMO in each diagram. **Notes:** - Consider the ordering of molecular orbitals for diatomic molecules, typically starting with \(\sigma\), followed by \(\pi\), and their respective antibonding orbitals \(\sigma^*\), \(\pi^*\). - Consider molecular orbitals such as \( \sigma_{1s}, \sigma_{1s}^*, \sigma_{2s}, \sigma_{2s}^*, \pi_{2p}, \sigma_{2p}, \pi_{2p}^*\), etc. - Check for special cases of molecular orbital ordering in some elements, such as the reversal of \(\sigma_{2p}\) and \(\pi_{2p}\) orbitals. This exercise helps in understanding the electronic structure and bonding properties of diatomic molecules through the application of molecular orbital theory.
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