Homonuclear diatomics, Chemistry

Assignment Help:

Bonding and ant bonding orbitals

Just as an atomic orbital (AO) is the wavefunction for an electron in an atom so a molecular orbital (MO) is that for a molecule; an MO will extend over two or more atoms. Exact MOs will be calculated by solution of Schrödinger's equation for the one-electron ion but as in atoms the extension of the orbital approach to manyelectron systems involves approximations. For MOs a further approximation is made: rather than using the same but very complicated wavefunction for it is convenient to express each MO as a linear combination of AOs, the so-called LCAO approximation. This approximation have to be refined considerably for quantitative calculations on computers, but it is adequate for qualitative purposes and provides very efficient pictures of how chemical bonds form, and how they are related to the valence AOs of the atoms involved.

2469_Untitled.png

 

 

 

Fig. 1. Formation of a bonding and antibonding MO from the overlap of 1s AOs in H2

 


Related Discussions:- Homonuclear diatomics

The number of 2p electrons having spin quantum numbers, The number of 2p  ...

The number of 2p  electrons having spin quantum numbers= -1/2   are: (1) 6        (2) 0        (3) 2        (4) 3 Ans: 3

Metals, sodium does not react with a) Carbon b) Nitrogen c) Hydrogen d)b...

sodium does not react with a) Carbon b) Nitrogen c) Hydrogen d)both a an b

Effects of substituents on the acidity of phenols, Effects of substituents ...

Effects of substituents on the acidity of phenols: Existence of electron attracting group, (for example -NO 2 , -X, - NR + 3 ,  -CN, -CHO, -COOH) on the benzene ring increases

Analytical chemistry, describe the steps involved in a sampling operation o...

describe the steps involved in a sampling operation of a chemical sample

Phenol, gattermann koch reaction mechanism

gattermann koch reaction mechanism

Define the cell potential of a galvanic cell, Define the Cell potential of ...

Define the Cell potential of a galvanic cell? The cell potential of a galvanic cell is the electric potential difference between terminals of the same metal, and is defined by

Show two reactions have identical value of ea, Two reactions have identical...

Two reactions have identical value of Ea. Does it the mean that they have same rate constant if run at the same temperature?Illustrate.

Orbital angular momentum of an electron in 2s -orbital, The orbital angular...

The orbital angular momentum of an electron in 2s -orbital is: (1) 1/2 h/ 2Π                              (2) h/ 2Π (3) √2 h/ 2 Π                      (4) Zero Ans

Set of quantum numbers is not possible for 4p electron, Which one of the f...

Which one of the following set of quantum numbers is not possible for 4p  electron : (1) n=4, l=1, m=-1, s= +1/2                 (2) n=4, l=1, m=0, s= +1/2          (3) n=

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