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What is needed for electrical conduction?
ions or mobile electrons
What term describes substances that allow charged particles through?
conductors
What term describes substances that do not allow charged particles through?
non conductors
Why solid ionic compounds (eg NaCl) do not allow electricity?
no free/ delocalized electrons; strong bonds hold electrons in place
What are 2 examples of conductors?
metals, metal oxides, graphite, solutions of ionic compounds
What are 2 examples of non-conductors?
non-metals, solid ICs, covalent compounds
Which type of conduction relies on "mobile / delocalized" electrons?
metallic
In which type of electrical conduction does the material / substance remain unchanged?
metallic
True or False: Electrolytic conduction involves dissolving or melting.
True
True or false: Electrolytic conduction involves chemically changing the substance.
True
What makes a strong electrolyte?
fully ionizes (only ions are present)
What is an electrolyte?
a solution, rich in ions that allow the flow of electricity
