6.3/6.4 Intermolecular Forces Flashcards
Name the 3 intermolecular forces
Induced dipole dipole
Permanent dipole dipole
Hydrogen bonding
How does induced dipole dipole forces work?
Electron clouds instantly move all the time making some parts of the atom opposite charges which will attract atoms doing the same
What factors affect induced dipole dipole forces?
More electrons
Bigger atomic radius
What are permanent dipole dipole forces?
The force between 2 polar molecules
Which of induced dipole dipole and permanent dipole dipole forces are the strongest?
Permanent dipole dipole forces
What is a hydrogen bond and which atoms are it between?
The bond between a hydrogen and either a nitrogen/oxygen/fluorine
Are hydrogen bonds strong or weak?
Strong
Why does hydrogen bonding only occur in the atoms N, O, H?
They are all highly electronegative
All have strong Pdd forces