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Shristy posted an Question
August 12, 2020 • 04:30 am 30 points
  • IIT JAM
  • Chemistry (CY)

The incorrect statement for solid sodium chloride is that: (a) both sodium and chloride ions adopt inert gas configuration, (b) the conduction band is ful 6. (d

The incorrect statement for solid sodium chloride is that: (a) Both sodium and chloride ions adopt inert gas configuration, (b) The conduction band is ful 6. (d) The valence band is full. (c) The conduction band is empty

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  • Suman Kumar Best Answer

    Since there is also a large bangap (~7eV), the band structure of NaCl is very similar to that of an insulator. Any promotion of electrons into the conduction band can be regarded as back transfer of charge from Cl- to Na+.

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    so mam if conduction band is fully filled than conduction will not take place ??

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    if conduction band is full then conduction will happen

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    ok mam thanku

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    Priyanshu kumar best-answer

    option B is incorrect

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    see this

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    if conduction band does not contain electrons than it means conduction is not taking place

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    The conduction band is the band of orbitals that are high in energy and are generally empty . In reference to conductivity in semiconductors,it is the band that accepts the electrons from the valence band.

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    yes when there is electrons in conduction band it makes the material conductive

  • Suman Kumar

    energy required to promote a valence electron bound to an atom to become a conduction electron, which is free to move within the crystal lattice 

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    If the valence band is completely full and the conduction band is completely empty, then electrons cannot move in the solid; however, if some electrons transfer from the valence to the conduction band, then current can flow

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