according to band theory which of the following explains the high electrical conductivity of metals?
a partially filled conduction band,
a valence bond overlapping an empty or mostly empty conduction band ,
a filled valence band,
a large gap between the valence band and the conduction band
Solution
Option b is correct that is valence band overlapping an empty or mostly empty conduction band . explanation: According to band theory, there\'s an energy gap separating the valance band and conduction band which is known as the forbidden energy gap. Now for an electron to jump from the valence band to the conduction band, it will have to gain minimum energy equivalent to the width of the band. But in the metals the valence band and the conduction band overlap to at least a small extent, therefore if they overlap more it means the metal has more conductivity .
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according to band theory which of the following explains the high elec.docx
1. according to band theory which of the following explains the high electrical conductivity of
metals?
a partially filled conduction band,
a valence bond overlapping an empty or mostly empty conduction band ,
a filled valence band,
a large gap between the valence band and the conduction band
Solution
Option b is correct that is valence band overlapping an empty or mostly empty conduction band .
explanation: According to band theory, there's an energy gap separating the valance band and
conduction band which is known as the forbidden energy gap. Now for an electron to jump from
the valence band to the conduction band, it will have to gain minimum energy equivalent to the
width of the band. But in the metals the valence band and the conduction band overlap to at least
a small extent, therefore if they overlap more it means the metal has more conductivity .
