Molecular Geometry of NF3

The video tutorial explains the molecular geometry of NF3, focusing on its Lewis structure, electron pair repulsion, and resulting trigonal pyramidal shape. It introduces the AXN notation to determine molecular geometry and discusses the bond angles, emphasizing the influence of lone pairs on the geometry.

What is the central atom in the Lewis structure of NF3?

• Oxygen

• Nitrogen

• Hydrogen

• Fluorine

How many fluorine atoms are bonded to the central nitrogen in NF3?

• Two

• Four

• Three

• One

What causes the molecular geometry of NF3 to form?

• Attraction between atoms

• Gravitational forces

• Repulsion between electron pairs

• Magnetic fields

What is the shape of NF3 due to the lone pair of electrons?

• Linear

• Trigonal planar

• Trigonal pyramidal

• Tetrahedral

In AXN notation, what does 'X' represent for NF3?

• Number of bonded atoms

• Number of total electrons

• Number of lone pairs

• Number of central atoms

How many lone pairs are present on the nitrogen atom in NF3?

• One

• Zero

• Three

• Two

What is the AXN notation for NF3?

• AX3

• AX2N2

• AX2

• AX3N

What is the approximate bond angle in NF3?

• 180°

• 120°

• 109.5°

• 90°

Why are the bond angles in NF3 not exactly 109.5°?

• Because of the size of fluorine atoms

• Because nitrogen is a heavy atom

• Due to the presence of lone pairs

• Due to the presence of double bonds

What is the molecular geometry of NF3?

• Linear

• Trigonal planar

• Tetrahedral

• Trigonal pyramidal