The band model, Chemistry

The band model of solids is an extended of the molecular orbital (MO) method. The overlap of atomic orbitals in an extended solid produces rise to continuous bands of electronic energy levels associated with different degrees of bonding. In a simple monatomic solid the bottom of the band is build up of orbitals bonding between all neighboring atoms; orbitals at the top of the band are antibonding, and levels in the middle have an intermediate bonding character. Different atomic orbitals may, in principle, give rise to different bands, although they may overlap in energy.






Fig. 1. Band picture for (a) nonmetallic and (b) metallic solid; occupied electronic levels are shown shaded.


Increases in temperature approximately in accordance with the Arrhenius equation used in chemical kinetics.


Posted Date: 7/23/2012 12:52:35 AM | Location : United States

Related Discussions:- The band model, Assignment Help, Ask Question on The band model, Get Answer, Expert's Help, The band model Discussions

Write discussion on The band model
Your posts are moderated
Related Questions
Refining of petroleum: Petroleum (crude) extracted from earth's crust is an intimate mixture of many organic compounds. Crude petroleum needs to be purified and its components

NMR Spectrum of benzyl methyl ether

The charge of an electron is -1.6 x10 -19 C.  The value of free charge on  Li + ion will be: (1) 3.6x 10 -19 c                   (2) 1x 10 -19 c      (3) 1.6 x 10 -19

principles of GCMS

The radius of electron in the first excited state of hydrogen atom is: (1) a 0                      (2) 4a 0            (3) 2a 0                            (4) 8a o

Antimicrobials: These are the chemical substances employed to cure infections because of micro-organisms. These are as well known as microbes. Any creature that causes disease

penetration power of proton is more/less than?

why ionisation energy of Al is greater than Ga?

Interconversion of the resonance structures of carbon monoxide with the curved-arrow notation: Because the carbon in the structure on the left has a sextet of electrons, it