Which of the following is true concerning the noble gases? a. their highest occupied s and p sublevels are filled. b. they belong to group 8a. c. they are sometimes referred to as the inert gases. d. all of the above

If i had to guess prob all the above. Im guessing i could be wrong.

Usally when u see an answer that has 2 or more right in it on any given test its 90% usally the answer unless they swing two question in a row like that to try and throw u off.

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.