Intermolecular Forces Flashcards
What are intermolecular forces?
Intermolecular forces are between molecules but they’re not as strong as covalent bonds.
How does a London Dispersion Force arise (LDF)?
They are formed as a result as an electrostatic attraction between temporary dipoles and induced dipole is due to the uneven distribution of electrons in atoms and molecules.
What experiences LDFs
All atoms and molecules experience LDFs
How Strong are LDFs?
Weak
How do Permanent Dipole-Permanent Dipole interactions arise?
They are electrostatic forces of attraction between a slightly positive and one polar molecule and a slightly negative end of another polar molecule.
What structures experience Pd-Pd?
Polar molecules
How strong are Pd-Pd interaction?
Strong
What is Hydrogen Bonding?
It is electrostatic forces of attraction between molecules that contain highly polar bonds consisting of a hydrogen atom bonded to a highly electronegative element.
What experiences Hydrogen Bonding?
Between molecules with highly polar bonds between hydrogen and nitrogen/oxygen/fluorine.
How strong is Hydrogen Bonding?
Very Strong
Why do the halogens boiling points increase as you go down the group?
The intermolecular forces increase going down the group
LDFs are the forces broken between the molecules
The more electrons the stronger the LDFs
