Term Papers on Technetium from Term Papers Lab.
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Technetium
Nalin Balan
NUCL 200
Paper due 02/07/97
Atomic Number: 43
Atomic Symbol: Tc
Atomic Weight: (97)
Electron Configuration: -18-13-2
History, Properties and Uses:
(Gr. technetos, artificial) Element 43 was predicted on the basis of the
periodi c table, and was erroneously reported as having been discovered in 1925,
at which time it was named masurium. The element was actually discovered by
Perrier and Segre in Italy in 1937. It was found in a sample of molybdenum,
which was bombarded by deut erons in the Berkeley cyclotron, and which E.
Lawrence sent to these investigators.
Technetium was the first element to be produced artificially. Since its
discovery, searches for the element in terrestrial material have been made
without s uccess. If it does exist, the concentration must be very small.
Technetium has been found in the spectrum of S-, M-, and N-type stars, and its
resence in stellar matter is leading to new theories of the......
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Title: Technetium
Approximate Word Count: 433
Approximate Pages: 2 (250 words per double-spaced page)
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... Cardiolite and Myoview). Technetium-99m is used in 20 million diagnostic
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... But the radioactive substances used in SPECT (Xenon-133, Technetium-99, Iodine-123)
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... Such nuclear reactions are used to produce americium-241 for use in household smoke
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