Chemistry
Grade-9
Easy
Question
Which of the following correctly lists the three main groups of elements from greatest conductivity to least conductivity?
- Non-metals - Metalloids - Metals
- Metals - Non-metals - Metalloids
- Metalloids - Metals - Non-metals
- Metals - Metalloids - Non-metals
Hint:
Metals have the highest conductivity.
The correct answer is: Metals - Metalloids - Non-metals
- Metals are good conductors of heat and electricity.
- Non metals are non conductors of heat and electricity.
- Metalloids have the property of both metals and non metals.
- Hence, order of conductivity from greatest to least: metals, metalloids, non metals.
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