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Technetium
Title: Technetium
Category: Science & Technology / Chemistry
Details: Words: 462 | Pages: 2.0 (approximately 235 words/page)
Technetium
Nalin Balan
NUCL 200
Paper due 02/07/97
TECHNETIUM
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 …showed first 75 words of 462 total…
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…showed last 75 words of 462 total…is
limited to closed systems, since technetium is radioative and must be con
fined. 98Tc
has a specific activity of 6.2 x 10^8 Bq/g. Activity of this level must n
ot be allowed to
spread. 99Tc is a contamination hazard and should be handled in a glove b
ox. The metal
is an excellent superconductor at 11K and below.
Source: CRC Handbook of Chemistry and Physics, 1913-1995. David R. Lide, Editor
in Chief. Author:
C.R. Hammond
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