The band model, Chemistry

Assignment Help:

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.

 

 

 

1262_Untitled.png

 

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.

 


Related Discussions:- The band model

Px orbital can accommodate, Normal 0 false false false ...

Normal 0 false false false EN-IN X-NONE X-NONE p x orbital can accommodate : (1) 4 electrons

Magnetic separation, give a brief explaination of magnetic separation is...

give a brief explaination of magnetic separation is. ?

Indicate the nature of bonding, Indicate the nature of bonding in CCl 4   a...

Indicate the nature of bonding in CCl 4   and  CaH 2 : (1) Covalent in Ccl 4    and electrovalent in  Cah 2 (2) Electrovalent in both CCl  and CaH 2 (3) Covalent in bot

Illustrate the descriptive analysis of sensory method, Q. Illustrate the de...

Q. Illustrate the descriptive analysis of Sensory method? Sensory methods may be used to quantify the perceived intensities of the sensory attributes of a product. The quantif

Organic chemistry, difference b/w inductive and field effect

difference b/w inductive and field effect

Lithium and beryllium, lithium and beryllium markedly differ from other mem...

lithium and beryllium markedly differ from other members of their respective groups

Normality, no mg eqivalent of solute per liter of solution

no mg eqivalent of solute per liter of solution

In hydrogen spectrum the different lines of lyman series, In hydrogen spect...

In hydrogen spectrum the different lines of Lyman series are present is : (1 )UV field (2) IR field (3) Visible field (4) Far IR field Ans:  UV field

Titration , Titration introductions,Objective,Literature,Method ,Discussion...

Titration introductions,Objective,Literature,Method ,Discussion ,Conclusion and References.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd