Why is solid NaCl non-conductor of electricity?
Why is NaCl harder than sodium metal?
Answers
Answer:
NaCl is solid in state and solid in or compound does not conduct electricity.
sodium chloride is an ionic compound which is formed by the attraction of oppositely charged particles and hence there occurs strong forces of attraction this forms hard crystalline solid while sodium is a metal which involves metallic bonding which of course is weaker than ionic bonding in sodium chloride.
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Question :
Why is solid NaCl non-conductor of electricity?
Why is NaCl harder than sodium metal?
Answer:
Solid NaCl is non conductor of electricity due to not having free rredical. i.e. Na⁺ and Cl⁻ are not free to move in NaCl solid.
In NaCl there is strong ionic bond between Na⁺ and Cl⁻ where as Na metal is weak metaliclic bond.
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