Electron pool theory of metals can not explain which of the following characteristics of metals?

Hardness

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Malleability

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Electrical conductivity

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Sonorousness

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Solution

The correct option is A Hardness
Electron Pool Theory.
This theory states that each atom present in a metallic crystal loses all of its valence electrons. As a result, a "pool" of electrons is formed. It is believed that positively charged metal ions are held together by this "pool" of electrons.
It explains metallic luster, electricity conductivity, thermal conductivity, malleability and ductility.
It cannot explain hardness of the metal.

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