Which of the following charecteristics of metals can not be explained by Electron sea model of metals?
A
Hardness
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B
Malleability
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C
Electrical conductivity
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D
Sonorousness
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Solution
The correct option is A Hardness Electron sea model of metal explains that all the metal atoms in a metallic solid contributes their valence electrons which float to form a sea of electrons around metal atoms. The electrons present in the outer energy levels of the metallic bonding are non - directional and are free to move from one atom to another. Due to presence of free electrons metals are good conductors of electricity and heat and can also absorb and re-emit light of different wavelength giving lusturous property. Kernels in metallic bonds alter their position when pressure is applied due to which they are malleable in nature