Final answer:
Metals and ionic solutions are the samples that will conduct electricity.
Step-by-step explanation:
The samples that will conduct electricity are metals and ionic solutions.
Metals are good electrical conductors because they have loosely held outer electrons that can move freely, allowing electric current to flow through them. Examples of metals include iron (Fe), silver (Ag), and potassium (K).
Ionic solutions, on the other hand, contain ions that can move freely in the solution, allowing electricity to flow. When an ionic compound such as sodium chloride (NaCl) is dissolved in water, the crystal lattice breaks apart, and the positive and negative ions can move independently. This enables the solution to conduct electricity.