In molecular orbital theory, which of the following statements is correct regard

Practice Questions

Q1
In molecular orbital theory, which of the following statements is correct regarding the energy levels of orbitals?
  1. σ orbitals are always lower than π orbitals.
  2. π orbitals are always lower than σ orbitals.
  3. σ* orbitals are always higher than π* orbitals.
  4. Energy levels can vary based on the atoms involved.

Questions & Step-by-Step Solutions

In molecular orbital theory, which of the following statements is correct regarding the energy levels of orbitals?
  • Step 1: Understand that molecular orbital theory explains how atomic orbitals combine to form molecular orbitals.
  • Step 2: Recognize that the energy levels of these molecular orbitals can change based on the types of atoms involved.
  • Step 3: Learn that electronegativity, which is a measure of an atom's ability to attract electrons, can influence the energy levels of the orbitals.
  • Step 4: Conclude that because different atoms have different electronegativities, the energy levels of the resulting molecular orbitals will also vary.
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