Lewis Structures and Molecular Geometry

The video tutorial explains how to determine the Lewis structure and molecular geometry of SBF5 2-. It begins by counting the valence electrons, followed by drawing the Lewis structure, ensuring the central antimony atom can have an expanded octet. The video then describes the molecular geometry, identifying it as square pyramidal due to the presence of a lone pair. The electron geometry is octahedral. The tutorial concludes with a demonstration of using AXE notation to confirm the molecular geometry.

What is the total number of valence electrons in SBF5 2-?

• 46

• 42

• 44

• 40

Which element is placed at the center of the Lewis structure for SBF5 2-?

• Boron

• Antimony

• Sulfur

• Fluorine

How many valence electrons are used to complete the octets of the fluorine atoms in SBF5 2-?

• 30

• 42

• 32

• 40

What is the significance of the brackets in the Lewis structure of SBF5 2-?

• They show that the structure is an ion.

• They indicate the presence of a lone pair.

• They are used to denote shared electrons.

• They highlight the central atom.

What is the molecular geometry of SBF5 2-?

• Octahedral

• Square pyramidal

• Trigonal bipyramidal

• Tetrahedral

What are the bond angles in the square pyramidal geometry of SBF5 2-?

• 90°

• 180°

• 109.5°

• 120°

What is the electron geometry of SBF5 2- considering the lone pair?

• Octahedral

• Trigonal bipyramidal

• Tetrahedral

• Square planar

In AXE notation, what does 'E' represent for SBF5 2-?

• Total number of valence electrons

• Central atom

• Number of bonded atoms

• Lone pairs on the central atom

How many lone pairs are present on the central atom in SBF5 2-?

• 0

• 1

• 2

• 3

What is the AXE notation for SBF5 2-?

• AX4E1

• AX6E0

• AX5E1

• AX5E0