Under certain conditions, what is a chlorine atom able to do to a sodium atom? It produces a bright yellow light and a great deal of heat energy.

Once this happens, the two ions are attracted to each other. What causes this attraction?

Explanation:h

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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