12. Molecular Shapes & Valence Bond Theory

According to molecular orbital theory, what is the effect on a molecule when an electron is promoted from a bonding orbital to an antibonding orbital?

Which of the following statements concerning molecular orbital theory is true?

Which of the following statements correctly describes the 1s bonding molecular orbital compared to the 1s antibonding molecular orbital?

According to molecular orbital theory, what is the bond order of the Ne_2^{2+} ion?

Using a molecular orbital (MO) diagram, calculate the bond order for O_2.

Which molecule is represented by a molecular orbital diagram showing 10 electrons filling the following orbitals in order: σ(1s), σ*(1s), σ(2s), σ*(2s), and σ(2p)?

Which of the following correctly describes the molecular orbital energy diagram for the diatomic molecule He_2?

When two p orbitals are combined in molecular orbital theory, how many distinct linear combinations (molecular orbitals) can be formed?

Which property of metals is better explained by band theory than by the sea-of-electrons model?

According to molecular orbital theory, where are electrons most likely to be found in a bonding molecular orbital?

Using molecular orbital theory, determine whether F₂, F₂⁻, or F₂²⁻ would have the strongest bond.

According to molecular orbital theory, how many bonding and antibonding molecular orbitals are formed from the combination of the valence atomic orbitals in methane (CH_4)?

Predict the bond order of the oxygen-oxygen bond in O₂.

Which of the following statements correctly describes the difference between sigma (σ) and pi (π) molecular orbitals?

Which of the following diatomic species is predicted to be stable according to molecular orbital theory?