Valence-shell-electron-pair-repulsion model (VSEPR)
predicts the molecular shape
Basis of VSEPR
electrons repel each other
Electrons are found in…
various domains
domain
includes any type of bond and lone pairs
Linear
two electron domains
Trigonal planar
three electron domains
Tetrahedral
four electron domains
Trigonal bipyramidal
five electron domains
Octahedral
six electron domains
Electron domain geometry
The arrangement of electron domains around the central atom
Molecular geometry
The arrangement of bonded atoms
Lone pairs take up…
more space than bonded electrons