Rainman

Essay specific features

 

Issue:

Miscellaneous

 

Written by:

Manuel K

 

Date added:

October 26, 2012

 

Level:

University

 

Grade:

A

 

No of pages / words:

1 / 279

 

Was viewed:

9995 times

 

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Essay content:

So is the repulsion between atomic nuclei. Various theories regarding chemical bond have been proposed over the past 300 years, during which our interpretation of the world has also changed. Some old concepts such as Lewis dot structure and valency are still rather useful in our understanding of the chemical properties of atoms and molecules, and new concepts involving quantum mechanics of chemical bonding interpret modern observations very well...
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These concepts help you understand the material world at the molecular level. Chemical bonds between identical atoms such as those in H2, N2, and O2 are called covalent bonds, in which the bonding electrons are shared. In ionic compounds, such as NaCl, the ions gather and arrange in a systematic fashion to form a solid...
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