Answer ASAP please Liquid sodium can be produced from a concentrated solution of sodium chloride,
NaCl. First the NaCl solution is evaporated until only solid NaCl deposits remain. The
solids are crushed, melted, and placed in an electrolytic cell called a Downs cell.
Inside the cell, sodium ions are reduced to liquid sodium at the cathode. Then the
liquid sodium is removed. In which part of the production of sodium described above
does a chemical change take place?

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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