Why are non-metals poor conductors of electricity?
They have high melting point
They are brittle
They do not have free electrons
All of above
A
They have high melting point
B
They are brittle
C
They do not have free electrons
D
All of above
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Solution
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Non-metals do not have enough free electrons to pass electricity efficiently. Electrons in non-metals are held tightly, they are no allowed to move freely.
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