Molecular Geometry of SbCl5 2-

The video tutorial explains how to draw the Lewis structure for the SbCl5 2- ion. It begins by counting the valence electrons, considering the extra electrons due to the negative charge. The least electronegative element, Sb, is placed at the center with five chlorine atoms around it. The structure is completed by forming bonds and ensuring octets, with Sb having an expanded octet. The molecular geometry is discussed, highlighting the transition from trigonal bipyramidal to square pyramidal due to the lone pair. The video concludes with the use of AXE notation to confirm the geometry.

How many valence electrons are present in the SbCl5 2- ion?

• 40

• 42

• 46

• 44

Which element is placed at the center of the SbCl5 2- Lewis structure?

• Hydrogen

• Oxygen

• Antimony

• Chlorine

What is the total number of valence electrons used after completing the octets of chlorine atoms in SbCl5 2-?

• 30

• 40

• 60

• 50

Where are the extra valence electrons placed in the SbCl5 2- Lewis structure?

• In a new bond

• They are not used

• On a chlorine atom

• On the central antimony atom

What is the molecular geometry of SbCl5 2- when considering the lone pair?

• Octahedral

• Tetrahedral

• Square pyramidal

• Trigonal bipyramidal

What is the bond angle between the atoms in the square pyramidal geometry of SbCl5 2-?

• 180°

• 120°

• 109.5°

• 90°

How does the presence of a lone pair affect the molecular geometry of SbCl5 2-?

• It changes the geometry to square pyramidal

• It makes the geometry linear

• It has no effect

• It makes the geometry tetrahedral

What is the electron geometry of SbCl5 2- when considering all electron pairs?

• Tetrahedral

• Trigonal planar

• Octahedral

• Linear

In AXE notation, what does the 'E' represent in the context of SbCl5 2-?

• Central atom

• Bonding pairs

• Lone pairs

• Total atoms

What is the AXE notation for the molecular geometry of SbCl5 2-?

• AX5E1

• AX4E1

• AX6E0

• AX5E0