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Thallium
Essay specific features
Written by:
Maria W
Date added:
January 30, 2014
Level:
University
Grade:
A
No of pages / words:
2 / 455
Was viewed:
2690 times
Rating of current essay:
Essay content:
It is
a very soft and malleable metal. It has an electron configuration of
1s22s23s23p64s23d104p65s24d105p64f145d106s26p1. It has 6 electron shells. It
melts at 576.7 K and boils at 1730 K. It is a solid when at room temperature.
Thallium was discovered in 1861 by a British chemist and physicist...
displayed 300 characters
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His
name was Sir William Crookes. He discovered it spectroscopically in England.
He isolated it. In 1862, the French chemist Claude August again isolated it.
Thallium comes form the Greek word "thallos". "Thallos" meant "green twig" or
"green shoot".
Thallium does not have many uses. It is used in photocells because of
the electrical conductivity of thallium sulphide...
displayed 300 characters
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