In general, the nucleus of a small atom is stable. therefore, over very short distances, such as those in a small nucleus, a. the strong nuclear force equals the electric force. b. the strong nuclear force and the electric force are both attractive c. the electric force is much greater than the strong nuclear force. d. the strong nuclear force is much greater than the electric force.

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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