Question

most of the elements that make good insulators are located at the _____ of the periodic table?A. Top B. right C. left D. bottom

Answer 1

So,

The elements that belong to group 18 of the modern periodic table can be considered as some of the best electric insulators since they all contain completely filled valence shells and are, therefore, stable.

In general, elements that make good insulators are nonmetals, and these are located at the right of the periodic table. Thus the correct answer is B.