The electronic arrangment is the same as the molecular shape when 1. there are more shared electrons than nonshared electrons. 2. the atoms are joined by sigma bonds. 3. the molecule is not polar. 4. there are no lone pairs of electrons on the central atom. 5. the number of bonding orbitals equals the number of anti-bonding orbitals.

. there are no lone pairs of electrons on the central atom.

Explanation:

According to the Valence Shell Electron Pair Repulsion  (VSEPR) thoery, the shape of a molecule is determined by the number of electron pairs present on the valence shell of the central atom in the molecule.

The number of electron pairs ultimately determines how they will be arranged in space. However, the presence of lone pairs on the central atom causes a greater repulsion of electron pairs and a consequent deviation of the molecular geometry from that predicted by the VSEPR theory. Hence the answer

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