An atom of nitrogen has seven electrons. I hitch diagram correctly represents the arrangement of these electrons?

C.

Explanation:

1s2 2s2 2p3

              ∧ ∧ ∧

⇅     ⇅   |    |   |

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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1 is the answer to this problem