CHEM 1A Lecture Notes - Lecture 1: Cathode Ray Tube, Cathode Ray, Pierre Curie

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CHEM 1A Full Course Notes
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CHEM 1A Full Course Notes
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Viewed closely, the world appears to be digital. Atom are the smallest unity of a particular element. They are very light: one (neutral) 12c atom has a mass of only about 2x. An electron has a charge of -1. 6x10^-19 coulombs, and a mass of only 9. 1 x10^-28 grams. Protons an neutrons likewise occur in integer units, you may have one proton or none. You may have one cent but nothing smaller. Every statement or explanation requires evidence to support it. Other experiments are usually suggested by a hypothesis one puts forward: if the new results support the hypothesis , then it may be correct, if not then it is revised or discarded. When there is no evidence, we out forward no claims, and say that we simply do not know. This is in direct opposition to all religious traditions, which make unsupported claims all the time, including supernatural phenomena.

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