fc 11 - structure, bonding and physical properties

metallic substances

metallic bonding and giant metallic lattice structure

metallic bonding

electrostatic attraction between positive ions ad delocalised negative electrons

mpt of metals increase

as number of delocalised electrons per atom increases as more energy needed to break the stronger metallic bonding

simple molecular substances

covalent bonding and simple molecular structure

when simple molecular substances are heated

intermolecular forces are broken so the molecules are separated (not the covalent bonds)

when giant covalent substances are heated

the covalent bonds are broken to separate

giant ionic lattice substances

ionic bonding and giant ionic lattice structure

when giant ionic lattice structures are heated

ionic bonds are broken between ions which takes lots of energy

solid ionic compounds

can’t conduct electricity

molten or aqueous ionic compounds

can conduct electricity

solubility of ionic compounds in water

often soluble as the ions can form strong interactions to water molecules which can be great enough to remove ions away from the giant ionic lattice structure and form hydrated ions