Answers

2015-01-30T19:17:34+05:30
BECAUSE OF THE FREE MOVING ELECTRONS....... WHEN ELECTRICITY IS PASSED THEY ATOMS START TO MOVE IN AN ORDERLY FASHION THUS CONDUCTING ELECTRICITY..............
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2015-01-31T09:36:56+05:30
Metals are good conductors of electricity because  electrons are free to move in a network in a network of metal atom . So because of Sea of electrons  , these electrons jst not belong to one atom  bt move freely in the metal's network ...which make them great conductors of electricity........also because they contain orbitals which are separated by small energy diffrences , metal can absorb wide range of light frequencies too..
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