Chem115 Memorization things

linear (2)

2 electron groups (180)

trigonal planar (3)

3 electron groups (120)

bent (3)

2 electron groups 1 lone pair (<120)

Tetrahedral (4)

4 electron groups (109.5)

trigonal pyramidal (4)

3 electron groups 1 lone pair (<109.5)

bent (4)

2 electron groups 2 lone pairs (<109.5)

octet rule exceptions

groups 2 & 3, molecules with odd number electrons, 3rd period and down

ion-dipole

ion attracted to dipole

hydrogen bonding

H atom attracted to O, N, or F

dipole-dipole

attractions between difference of electronegativity of atoms

london dispersion forces

in all molecules, temporary dipoles

alcohol

ether

amine

halide

alkene

alkyne

phenyl

ketone

aldehyde

carboxylic acid

ester

amide