the surface of some metals corrode when exposed to the air explain why this reduces the electrical conductivy of a metal
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because the electrical conductivity depends on thickness of wire as the Surface area of metal corode it will become less thicker
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this is because when metal get corroded their properties also change like their strength,ductility,conductivity etc. and due to its impure form there is looss of electrons which decreases and free charge are not available and conductivity decreases
DIVZ4549:
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can you help me with another one ?
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explain why copper has a high melting point
Copper metal consists of positive copper ions held together by the force of attraction between the ions and free, delocalised electrons. The attraction is electrostatic attraction. This is called a metallic bond and is very strong
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