Download Atoms in Chemistry: From Dalton’s Predecessors to Complex by Carmen Giunta PDF

By Carmen Giunta

ISBN-10: 0841225575

ISBN-13: 9780841225572

content material: Centuries of atomic idea: an summary --
Atomism sooner than Dalton --
one hundred fifty years of natural buildings --
The atomic debates revisited --
Atoms are divisible: the items have items --
Eyes to work out: actual proof for atoms --
Rediscovering atoms: an atomic travelogue.

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Extra info for Atoms in Chemistry: From Dalton’s Predecessors to Complex Atoms and Beyond

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Wurtz was not a member of the Academie at that time, and therefore could not present the paper himself without the sponsorship of a member (usually Balard). Whatever its cause, Wurtz' delay in finding a sponsor brought Couper to a fury, with far-reaching consequences. In both papers two key ideas were set forth — 1) the idea of the tetravalent carbon atom, and 2) the concept of catenation (that carbon atoms could form chains). Both papers also stated explicitly, for the first time, what became known as the chemical structure of a compound, and the idea that the properties of the compounds depended on the properties and arrangement of their component atoms, rather than the more complex (and less well defined) radicals.

Phaedo. : New York, 1911; Vol. 21, p 341b. (a) Partington, J. R. : London, 1970; Vol. 1, pp 6-7. (b) Pullman, B. The Atom in the History of Human 29 In Atoms in Chemistry: From Dalton's Predecessors to Complex Atoms and Beyond; Giunta, C; ACS Symposium Series; American Chemical Society: Washington, DC, 2010. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. , Translator; Oxford University Press: New York, 1998; pp 13-16. (a) Partington, J. : London, 1970; Vol. 1, pp 7-8. (b) Pullman, B. , Translator; Oxford University Press: New York, 1998; pp 16-17.

And for these reasons, and out of such elements, which are in number four, the body of the world was created" (22). Aristotle of Stageiros (384-322 BCE) did not agree with his teacher's geometric bodies for the different elements. He rejected the Democritian atoms in which matter was considered a principle but form was a secondary characteristic. Nor did he accept the existence of a void. According to the Aristotelian view, the four elements arose from the action on primordial matter by pairs of qualities (warm + dry, fire, warm + moist, air, cold + dry, earth, cold + moist, water).

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