Electron Geometry and Lewis Structures of SbBr5 2-

This video tutorial explains how to draw the Lewis structure for SbBr5 2-. It begins by counting the valence electrons, placing the least electronegative element in the center, and arranging bromine atoms around it. The tutorial covers the concept of expanded octets and finalizes the structure by adding brackets and charge. It also discusses the molecular geometry, explaining the square pyramidal shape due to the lone pair, and uses AXE notation to describe the geometry. The video concludes with a summary of the Lewis structure and molecular geometry for SbBr5 2-.

What is the total number of valence electrons in SbBr5 2-?

• 46

• 42

• 44

• 40

Which element is placed at the center of the Lewis structure for SbBr5 2-?

• Oxygen

• Chlorine

• Antimony

• Bromine

How many bromine atoms are bonded to the central antimony atom in SbBr5 2-?

• 6

• 5

• 4

• 3

What is the significance of an expanded octet in the context of SbBr5 2-?

• It restricts the central atom to exactly eight electrons.

• It allows more than eight electrons around the central atom.

• It prevents the formation of any lone pairs.

• It limits the number of bonds the central atom can form.

Why are brackets used in the Lewis structure of SbBr5 2-?

• To separate different molecules.

• To highlight the central atom.

• To indicate the presence of lone pairs.

• To show that it is an ion.

What is the molecular geometry of SbBr5 2-?

• Octahedral

• Square pyramidal

• Tetrahedral

• Trigonal bipyramidal

What is the electron geometry of SbBr5 2- when considering the lone pair?

• Linear

• Octahedral

• Trigonal planar

• Tetrahedral

What role does the lone pair play in the molecular geometry of SbBr5 2-?

• It forms additional bonds with bromine.

• It has no effect on the geometry.

• It repels the bromine atoms, altering the shape.

• It attracts the bromine atoms closer.

What is the AXE notation for SbBr5 2-?

• AX5E1

• AX6E0

• AX4E1

• AX5E0

How does the presence of a lone pair affect the electron geometry of SbBr5 2-?

• It makes the geometry trigonal planar.

• It has no effect on the electron geometry.

• It results in a square pyramidal shape.

• It changes the geometry to linear.