Molecular Geometry of N3- Ion

The video tutorial explores the molecular geometry and bond angles of the N3- ion, also known as the azide ion. It begins with an introduction to the concept of molecular geometry and the importance of a valid Lewis structure. The video then explains the Lewis structure for the N3- ion, highlighting the electron configuration and the negative charge. It discusses the linear molecular geometry of the ion, emphasizing the absence of lone pairs and the resulting 180° bond angle. The tutorial further explains how to determine the molecular geometry using the steric number and AXE notation, confirming the linear geometry of the N3- ion.

What is the first step in determining the molecular geometry of the N3- ion?

• Identifying the bond angles

• Using AXE notation

• Drawing a valid Lewis structure

• Calculating the steric number

How many valence electrons does each nitrogen atom have in the N3- ion?

• Six

• Nine

• Eight

• Seven

What is the shape of the N3- ion based on its Lewis structure?

• Linear

• Trigonal planar

• Tetrahedral

• Bent

What is the bond angle in the linear geometry of the N3- ion?

• 90°

• 120°

• 109.5°

• 180°

What is the electron geometry of the N3- ion?

• Linear

• Trigonal planar

• Bent

• Tetrahedral

How many things are attached to the central nitrogen in the N3- ion?

• Two

• Four

• One

• Three

What is the steric number of the central nitrogen in the N3- ion?

• One

• Two

• Three

• Four

What does the 'A' represent in AXE notation for the N3- ion?

• The number of bonded atoms

• The central atom

• The total number of atoms

• The number of lone pairs

How many lone pairs are present on the central nitrogen in the N3- ion?

• Three

• Zero

• Two

• One

What is the molecular geometry of the N3- ion according to AXE notation?

• Bent

• Trigonal planar

• Linear

• Tetrahedral