Theory Bond-Band-Barrier 3B Correlation

Chemical bond, energy band, and surface potential are closely correlated. 

and C hybridize their sp orbit upon reacting with atoms in any phase to create tetrahedral bonding orbits. 

Non-bonding lone electron pairs arul bonding shares electron pairs occupy the orbits. The number of lone pairs follows the (4 n) rule with n being valance value. 

The lone pair polarizes its neighboring atoms to form dipoles. 

Bond and non-bond formation creates four DOS features in the valence band, 

---