Tuesday, March 16, 2010

Week Six


1. Halogen of the week - Flourine

Fluorine is the chemical element atomic number 9 represented by the symbol F.

Fluorine forms a single bond with itself in elemental form, resulting in the diatomic F2 molecule.

F2 is a supremely reactive, poisonous , pale, yellowish brown gas.

Elemental fluorine is the most chemically reactive and electronegative of all the elements.

It will readily "burn" hydrocarbons at room temperature, in contrast to the combustion of hydrocarbons by oxygen , which requires an input of energy with a spark. Therefore, molecular fluorine is highly dangerous, more so than other halogens such as the poisonous chlorine gas.

Drugs are often fluorinated at biologically reactive positions, to prevent their metabolism and prolong their half-lives.

2. Alchemy - science, magic , art or all three? All three :*) It is very similar to see how magicians artists, and scientist add and conduct their alchemy. A little of this a little of that magicians may just be hiding their hands or another middle process while they do and artist may be doing by adding other substances or eliminating pieces from a chunk. However, they all meet the ancient meaning of 'Alchemy ' - the yearning to make something different than it was before.

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