Overlapping of Band structure in Metals

Discussion in 'Homework Help' started by deter_dangler, Oct 13, 2010.

  1. deter_dangler

    Thread Starter New Member

    May 19, 2010
    6
    0
    The metals(Li,Na..) have one electron in thir outershell i.e. 2s1(Li) & 3S1(Na)..

    So when atoms of (Li or Na) brought closer the bands form and they overlap..

    Can any one describe why it happens only in metals
     
  2. Papabravo

    Expert

    Feb 24, 2006
    10,135
    1,786
    It doesn't just happen in metals. It happens in Si and Ge which are not metals, but semiconductors. In fact as quantum mechanical objects electrons have small finite probabilities of bing almost anywhere.
     
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