The numbers of bonding MOs, antibonding MOs, and nonbonding MOs in a linear molecule of three atoms from the second row, with the first and the third atom each mixing two of their orbitals with two from the central atom, is to be determined. Concept introduction: The orbital picture of a molecule can be built on the basis of the atomic orbitals (AOs) that each atom can contribute. An atom from the second row has four valence shell orbitals, one s orbital and three p orbitals. Overlap and mixing of two AOs results in the formation of two MOs, one of them a bonding MO, and the other an antibonding MO. Orbitals that do not show substantial mixing are treated as nonbonding MOs.

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Chapter 3, Problem 3.53P

Interpretation Introduction

Interpretation:

The numbers of bonding MOs, antibonding MOs, and nonbonding MOs in a linear molecule of three atoms from the second row, with the first and the third atom each mixing two of their orbitals with two from the central atom, is to be determined.

Concept introduction:

The orbital picture of a molecule can be built on the basis of the atomic orbitals (AOs) that each atom can contribute. An atom from the second row has four valence shell orbitals, one s orbital and three p orbitals. Overlap and mixing of two AOs results in the formation of two MOs, one of them a bonding MO, and the other an antibonding MO. Orbitals that do not show substantial mixing are treated as nonbonding MOs.

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