Which of the following metal is the best conductor of electricity?

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Nickel

Silver

Gold

Sodium

answer is B.

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Detailed Solution

concept - Conductors of electricity are materials that allow electricity to flow easily through them. Conductive materials allow easy transfer of charge due to the free movement of electrons through them.
Most conductive materials are found to be metals. For example, the wire around your house probably uses copper as conductive materials or alloys. Electrical plugs have metal in them, and the internal mechanism of your electric irons also uses metals as conductive material. This is because metals have a lot of free electrons and promote mobility. Some of the best metallic conductors are silver (Ag), copper (Cu), and gold (Au).
The more free electrons there are in a metal, the greater its conductivity. Silver, on the other hand, has better electrical conductivity than copper and gold.
Hence, the correct option is (2).

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