polarity/electronegativity

Question 1

electronegativity

Answer 1

relative ability to attract an electron pair in a covalent bond

Question 2

dipole

Answer 2

separation of charge within a covalent bond

Question 3

Intermolecular forces

Answer 3

weak interactions between dipoles of different molecules
(H-bonding, permanent dipole, London)

Question 4

London forces

Answer 4

Nuclei in atoms are not perfectly central - causes instantaneous dipole
instantaneous dipole induces dipole on neighbouring molecule
chain reaction causes dipoles to attract eachother