Electricity - stream of electrons from negative to positive terminal [thats the movement of electrons]
Insulators dont conduct [no free electrons]
Electricity:
The only solids that conduct - Metals and graphite
cus free electrons
Molecular substances are non conductors
cus no free electrons
Ionic substances dont conduct when solid, only when melted or dissolved in water
has ions w charges = free to move [melted or dissolved]
Electrolysis - using electricity to break down an ionic compound that is molten or aqueous
Electrode - rod of metal/graphite which an electric current flows into or out of
Electrolyte = Ionic compound [molten or dissolved solution] that conducts electricity
Anode = + electrode
Anion = - ion
Cathode = -electrode
Cation = + ion