Bonding & Solids Flashcards
The closer nuclei are from each other
- Higher potential nrg bc more mrg in system (repelling)
- When you get to a good d, bonds won’t want to break, meaning add nrg
- Farther you get, closer it is to 0
Three regions of space
- trigonal planar
- 120
Three regions of space, 1 LP
- bent
- <120
Four regions of space
- tetrahedral
- 109.5
Four regions of space, 1 LP
- trigonal pyramidal
- < 109.5
Four regions of space, 2 LP
- bent
- «109.5
Five regions of space
- trigonal bipyramidal
- 90 & 120
Five regions of space, 1 LP
- seesaw
- 90 & 120
Five regions of space, 2 LP
- t shape
- 90
Five regions of space, 3 LP
- linear
- 180
Six regions of space
- Octahedral
- 90
Six regions of space, 1 LP
- square pyramidal
- 90
Six regions of space, 2 LP
- square planar
- 90
Molecular polarity
- Bond polarity
- Molecule shpae: symmetry causes non polar, but depends if same elements
Ionic Crystals Particles, Forces & Points
- Ions (cations & anions)
- Ionic bonds
- High from strong bonds
Ionic Crystals Conductivity & Physical Properties
- Solid = insulators
- Liquid = conductors
- Hard/brittle/soluable
Metallic Crystals Particles, Forces & Points
- Metal atoms
- Metallic bonds from delocalized e-
- Low from weak bonds
Metallic Crystals Conductivity & Physical Properties
- Conductors in all states
- Soft, malleable, lustrous
Molecular & Atomic Crystals Particles, Forces & Points
- Neutral molecules/atoms
- van der Waals (LD & DD)
- Very low
Molecular & Atomic Crystals Conductivity & Physical Properties
- Insulators in all states
- Could be anything
Covalent Crystals/Network Solids Particles, Forces, & Points
- Nometal Atoms
- Single Covalent Bonds
- Very high
Covalent Crystals/Network Solids Conductivity & Physical Properties
- Insulators in all states
- Hard/brittle (diamonds)
