intermolecular-handout - Questions Why do some solids...

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• Why do some solids dissolve in water but others do not? • Why are some substances gases at room temperature, but others are liquid or solid? • What gives metals the ability to conduct electricity, what makes non-metals brittle? • The answers have to do with … Intermolecular forces Intermolecular forces Questions Overview Overview • There are 2 types of attraction in molecules: intra molecular bonds & inter molecular forces • We have already looked at intra molecular bonds (ionic, polar, non-polar) • Inter molecular forces (IMF) have to do with the attraction between molecules (vs. the attraction between atoms in a molecule) • IMFs come in six flavours: 1) ionic, 2) dipole - dipole, 3) H-bonding, 4) London forces, 5) covalent (network solids), 6) metallic Intermolecular forces Intermolecular forces Ionic, Dipole Ionic, Dipole - Dipole attractions Dipole attractions •We have seen that molecules can have a separation of charge •This happens in both ionic and polar bonds (the greater the EN,
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