During science class, while studying mixtures, you mix together table salt and sand. your teacher challenges you to separate the salt from the sand. what property could you use and how would you use it?

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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