a student wants to examine a substance without altering its composition. which of the following describes a property of the substance that the student should examine

so what is the problem with your lab report and whats the subject of the lab report? i will you

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.

if it's not useful, feel free to report for mistake in answer.

idk what is it? is this a question that you know the answer or u dont