The vertices of a tetrahedron correspond to four alternatingcorners of a cube. By using analytical geometry, demonstratethat the angle made by connecting two of the vertices to apoint at the center of the cube is 109.5°, the characteristicangle for tetrahedral molecules.

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Quantum Mechanical Treatment of the Valence Bond Theory

Quantum mechanical treatment of valence bond theory refers to the relationship established between the quantum mechanical theory and the valence bond theory to describe the chemical bonding in a particular molecule.