Molecular Geometry and AXE Notation

The video tutorial explains the square pyramidal molecular geometry, highlighting that it involves a steric number of six, with five atoms and one lone pair attached to the central atom. ClF5 is used as an example to illustrate this geometry. The tutorial also covers the 3D arrangement of atoms and lone pairs, emphasizing the 90-degree bond angles. Finally, the AXE notation is explained, where 'A' represents the central atom, 'X' the bonded atoms, and 'E' the lone pair, resulting in the formula AX5E for square pyramidal geometry.

What is the steric number in square pyramidal molecular geometry?

• Seven

• Six

• Five

• Four

In ClF5, how many atoms are bonded to the central atom?

• Six

• Four

• Five

• Three

What role does the lone pair play in the shape of ClF5?

• It attracts the atoms closer.

• It pushes the atoms downward.

• It does not affect the shape.

• It forces the atoms to spread out.

What are the bond angles in a square pyramidal molecular geometry?

• 60 degrees

• 90 degrees

• 120 degrees

• 180 degrees

How many lone pairs are present in a square pyramidal molecular geometry?

• Two

• One

• None

• Three

In AXE notation, what does 'A' represent?

• An electron cloud

• The central atom

• A bonded atom

• A lone pair

In AXE notation, what does 'X' represent?

• A lone pair

• An electron cloud

• A bonded atom

• The central atom

In AXE notation, what does 'E' represent?

• A bonded atom

• The central atom

• An electron cloud

• A lone pair

What is the AXE notation for a square pyramidal molecular geometry?

• AX3E2

• AX6

• AX4E

• AX5E