Silicate Anion SiO4^4- Concepts

The video tutorial explains the molecular geometry of the silicate anion, SiO4 4-. It begins with the Lewis structure, identifying the central silicon atom bonded to four oxygen atoms, resulting in a tetrahedral geometry with bond angles of approximately 109.5 degrees. The tutorial then visualizes this structure in three dimensions, reinforcing the tetrahedral shape. It concludes by discussing the AXE notation, confirming the tetrahedral geometry due to the absence of lone pairs on the central atom.

What is the central atom in the silicate anion SiO4^4-?

• Carbon

• Sulfur

• Silicon

• Oxygen

How many atoms are bonded to the central silicon atom in SiO4^4-?

• Five

• Two

• Three

• Four

What is the steric number of the silicate anion SiO4^4-?

• Five

• Four

• Three

• Two

What is the molecular geometry of SiO4^4-?

• Linear

• Octahedral

• Tetrahedral

• Trigonal Planar

What is the approximate bond angle in a tetrahedral molecular geometry?

• 90 degrees

• 180 degrees

• 120 degrees

• 109.5 degrees

In the 3D structure of SiO4^4-, how do the oxygen atoms arrange themselves around the silicon atom?

• In a tetrahedral shape

• In a circle

• In a square

• In a straight line

What is the electron geometry of SiO4^4-?

• Linear

• Trigonal Planar

• Tetrahedral

• Octahedral

In AXE notation, what does 'A' represent for SiO4^4-?

• The number of lone pairs

• The central atom

• The total number of atoms

• The number of bonded atoms

In AXE notation, what does 'X' represent for SiO4^4-?

• The total number of atoms

• The number of bonded atoms

• The central atom

• The number of lone pairs

What is the AXE notation for SiO4^4-?

• AX4

• AX3

• AX2

• AX5