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 
Periodic Table of Elements
Dmitri Mendeleev

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F

350

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300
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150
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50
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9 11 13 15 17 19 21 23 25 27 29 31 33 35
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Emsley, J., The Elements; Oxford University Press: New York, 1998.

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Electronegativity =Linus C. PaulingNobel Prize
1954
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→WebElements: the periodic table on the web
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1921

Pyykko, P., Chem. Rev. 1988, 88, 563-594.
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state (IUPAC Technical Report). In Pure Appl. Chem., 2014; Vol. 86, p 1017.

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Chemistry of Hypervalent Compounds
Kin-ya Akiba Ed., Wiley-VCH, 1999

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%6=;(-E Be(CH3)2E%6William Lipscomb

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1976

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#%$'&Charles Pedersen
Nobel Prize1987

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R = 2,4,6-Me3C6H2Science 1981, 214, 1343-1344.

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R = Si(CHSiMe3)2iPr
Science 2004, 305, 1755-1757.

R = 2,4,6-tBu3C6H2J. Am. Chem. Soc. 1981, 103, 4587-4589.

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Georg Wittig
Nobel Prize
1979

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