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Thallium
Part I of Essay
My element was . It is atomic number 81. It has 81 protons and
electrons and 123 neutrons. has a mass of 204.3833 atomic mass units.
Its symbol is Tl. It resides in Group IIIA of the periodic table. That is the
aluminum family. has a bluish color after exposure to .... Part II of Essay
.... of the narrow margin between the benefits and its health risks.
Thallium bromide-iodide crystals are still used as infrared detectors. Thallium
sulphate used to be widely used as a pesticide and an ant killer. It was
odorless and tasteless and worked well, but it was found to be too toxic.
Thallium slats which burn with a bright green flame are used in flares and
rockets. Thallium is the 60th most abundant element in the Earth’s crust.
There are 3.6 parts of Thallium in every million parts of the Earth’s crust.
Thallium compo ....
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Words: 457 - Pages: 2
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