Which one of the following substances conducts electricity by the movement of ions?
Correct answer: C. Molten sodium chloride
- A. Graphite
- B. Copper
- C. Molten sodium chloride
- D. Mercury Electrical conductivity in materials can occur through two main mechanisms:Electron movement: This is typical for metals and graphite,where the delocalized electrons can freely move and carry the current.Ion movement: This occurs in molten salts and solutions,where charged ions migrate under the influence of an electric field.
Explanation
Electrical conductivity in materials can occur through two main mechanisms:Electron movement: This is typical for metals and graphite,where the delocalized electrons can freely move and carry the current.Ion movement: This occurs in molten salts and solutions,where charged ions migrate under the influence of an electric field.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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