Chapter 9 Flashcards
What determines the function of a molecule?
The shape of the molecule
What determines the shape of the molecule?
The electronic distribution
How do we determine the shape of a molecule?
VSEPR Theory
What is the VSEPR Theory?
Valence Shell Electron Pair Repulsion
Electron pairs want to get as far away from each other as possible
What are the other words for steric number?
Effective electron pair or electron groups.
What is considered one electron group?
Lone pair, single bond, double bond, triple bond
What are the steps of determining electronic geometry?
1) Determine steric number
2) Determine electronic geometry
What is the electron geometry and bond angle for SN = 2?
Linear, bond angle 180*
What is the electron geometry and bond angle for SN = 3?
Trigonal planar, bond angle = 120*
What is the electron geometry and bond angle for SN = 4?
Tetrahedral, bond angle = 109.5*
What is the electron geometry and bond angle for SN = 5?
Trigonal bipyramidal, bond angle = 90* & 120*
What is the electron geometry and bond angle for SN = 6?
Octahedral, bond angle = 90*
