Final answer:
Good conductors of electricity among the listed materials are aluminum and gold, due to their high density of free electrons. Distilled water is not a good conductor as it lacks ions.
Step-by-step explanation:
Among the materials listed — aluminum (I), gold (II), and distilled water (III) — the good conductors of electricity are aluminum and gold.
These materials are known for their high density of free electrons, which facilitates the flow of electrical current.
Conductivity in metals such as aluminum and gold applies not only to electricity but also to thermal energy, making them excellent thermal conductors as well.
This property is why cooking utensils are usually made of metals.
However, distilled water is not a good conductor of electricity because it lacks the ions necessary for conducting electrical current, as evidenced in Figure 3.10.3.