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Timeline of Elements?

Title: Timeline of Elements?
Category: /Science & Technology/Chemistry
Details: Words: 524 | Pages: 2 (approximately 235 words/page)
Timeline of Elements?
*500 BC- 1720: Alchemists used Ancient Art, during the middle Ages, to discover a substance that would change common metals to gold or silver. *442 BC: Democritus came up with the theory of atoms, and also he stated that the universe is made up of empty space and that all matter is composed of indivisible atoms. *384 - 322 BC: Aristotle developed techniques for gathering scientific facts. His progress provided the basis for scientific work more than a millennium. *1777: Lavoisier, …showed first 75 words of 524 total…
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…showed last 75 words of 524 total…Uranium is bombarded by neutrons it produces smaller nuclei roughly half the size of the original Uranium nucleus. *1938- Lise Meitner realized that Hahn was splitting the Uranium nucleus, something never done before. *1951- Glen Seaborg succeeded in making man-made elements first. *1964- Murray Gell-Mann and George Zweig recommended the idea of quarks called up, down, or strange, unruffled of mesons and baryons, with spin 0.5 and electric charges of 2/3, -1/3, and -1/3 in that order.

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