How will you prove that the given substances is a good conductor of electricity?
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To be a good conductor, they need a pathway for electrons to flow. And the electrons must be as weakly bound to the nucleus as possible. ... Instead of electrons moving, these ions move, causing current.
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Touch the open ends of the two wires to each other to form a circuit and test the bulb. Touch the two open ends of the wire to each material you are testing, one at a time. If the bulb lights up, it is a good conductor. If it doesn't, it is a good insulator.
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