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what is periodic table?
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Asked 10/12/2012 2:39:42 PM
Updated 6/1/2014 5:27:54 PM
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Flagged by alfred123 [6/1/2014 5:27:50 PM]
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User: what is periodic table?

Weegy: Two major disadvantage cited by critics of the left step periodic table (LSPT) are as follows: 1) Janet's version III of LSPT displays He next two Be, in the same group with Alkaline Earth Metals. [ (Version II of LSPT (1928) displays He next to Ne, just like in traditional table); 2) it does not have smooth transition from metals to nonmetals, as traditional Periodic table has. Instead, the sequence of the elements goes from metals to nonmetals and back to metals, ending with alkaline earth metals. However, Dr. Henry Bent, well known chemist and educator, in his book "New Ideas in Chemistry from fresh energy for the Periodic Law" (Authorhouse, 2006) argues that the above cited disadvantages in fact might be viewed as advantages and that LSPT provides more objective depiction of the Periodic Law. His arguments are based on general regularity of LSPT. Indeed, LSPT's periods are gap less, unlike in traditional periodic table, where first three periods have huge gaps and f-block is presented as footnote. Also, he notes that LSPT follows n+l rule, that is the basis for the Periodic Law. In contrast, the traditional periodic table does not follow the basic rule of the Periodic Law! In addition to those two arguments, he demonstrates that alkaline earths group of elements is distinct form all other groups and, therefore, each period has to end with the alkaline earth metal in order to be gap less. One of the interesting observations made by prof. Bent is the fact that every other alkaline earth atomic number corresponds to Square Pyramidal number multiplied by factor of four. This is also reinforced by discovery of tetrahedral character of the periodic system made by Jess Tauber in 1979 that was independently rediscovered in 2007 by the author of this note. Mazurs, in his famous book on Periodic Table formulations, stated that future belongs to a periodic table that would be based on Electron Configurations. ]
thederby|Points 1499|

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Asked 10/12/2012 2:39:42 PM
Updated 6/1/2014 5:27:54 PM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by alfred123 [6/1/2014 5:27:50 PM]
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The periodic table is a tabular arrangement of the chemical elements, organized on the basis of their atomic numbers, electron configurations (electron shell model), and recurring chemical properties.
Added 6/1/2014 5:27:54 PM
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