Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
Insulators
B
Reactors
C
Solvents
D
Catalysts
Understanding the Answer
Let's break down why this is correct
Answer
Metals are good at conducting electricity because their atoms have loosely held electrons that can move freely. Nonmetals, on the other hand, do not share their electrons easily, so they do not allow electric current to pass through them. This lack of mobile electrons makes nonmetals poor conductors, or insulators. For example, a copper wire conducts well, while a piece of rubber or glass—both nonmetals—blocks electrical flow. Thus, the relationship is Metals:Conductors :: Nonmetals:Insulators.
Detailed Explanation
Metals can move their outer electrons freely, so they carry electric charge easily. Other options are incorrect because A reactor is a device that holds a reaction, not a property of elements; Solvents dissolve other substances, but this is not a defining trait of nonmetals.
Key Concepts
Periodic Table Structure
Properties of Elements
Conductivity
Topic
Periodic Table Structure
Difficulty
medium level question
Cognitive Level
understand
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