A nanoparticle has a surface area of 38 400 nm2 and a volume of 51 200 nm3 . Calculate the surface area to volume ratio.

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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answer: mole of the gas

answer: mole of the gasexplanation:

answeridentity;