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

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Question: In molecular orbital theory, which of the following statements is correct regarding the energy levels of orbitals?

Options:

  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.

Correct Answer: Energy levels can vary based on the atoms involved.

Solution:

The energy levels of molecular orbitals can vary depending on the specific atoms and their electronegativities.

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.
  • Molecular Orbital Theory – A theory that describes the electronic structure of molecules using molecular orbitals formed from atomic orbitals.
  • Energy Levels of Orbitals – The arrangement of molecular orbitals in terms of their energy, which can be influenced by the types of atoms involved and their electronegativities.
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