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Posted by George Grant
Attraction between atoms or ions leads to a chemical bond. According to the types of bonds contained in a molecule, the physical properties including melting point, hardness, electrical and thermal conductivity and solubility are determined. Chemical bonds involve only the outermost or valence electrons of atoms. Using the example of the simplest element, hydrogen, its two atoms on approaching each other, cause electon-electron and proton-proton repulsions to attempt separation of the atoms. But counterbalance by proton-electron attraction fuses the two hydrogen atoms forming a bond.
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Posted by Ulla Sebastian
The following article is offered for free use in your ezine, print publication, blog, RSS feed or on your web site, so long as the author resource box at the end is included. Notification of publication would be appreciated.
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Posted by John Sheridan
When companies advertise their services or goods, they are looking for just one end result - sales. It's a simple straightforward concept - it's business. However, as companies expand and conduct more and more trade online, the personal touches can all but disappear.
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Posted by Chris Bryant
There is a real revolution today among CCNA and CCNP candidates.
More and more of you are turning your...
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Posted by Daniel Lesser
Current info about electronic dictionary is not always the
easiest thing to locate. Fortunately, this...
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Posted by Lance Winslow
It is always difficult to capture wild animal intelligence on film or in actual observation, but it is not impossible nor is it to be consider non-existent. Many times wild animals are caught and nurtured back to health when injured by humans and then set back free, during the minor periods of captivity they are taught new skills. Yet so often once back in the wild they do not teach their local grouping the skill or even their offspring. It does happen and has been documented, but still it is rare.
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Posted by Joe Bardwell
The article describes electromagnetic propagation and how RF
engineering concepts can be applied specifically...
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Posted by Mike Street
It's unlucky that the acronym for Wireless Application Protocol
(WAP) has such an unfortunate rhyme!...
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