Astudent measured the gram weight of a metal object to be 7.45g. according to the supplier the object weighs 6.78g. what is the error in the students measurement

a. a primary source combines several different accounts of an event. b. a primary source generally benefits from having been written after an event.

explanation:

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.

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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