Facts about Thallium

Facts about Thallium - Element included on the Periodic Table

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Facts about the Definition of the Element Thallium
The Element Thallium is defined as...
A soft, malleable, highly toxic metallic element, used in photocells, infrared detectors, low-melting glass, and formerly in rodent and ant poisons.
 

Interesting Facts about the Origin and Meaning of the element name Thallium
What are the origins of the word Thallium ?
The name originates from the Greek word 'thallos' meaning a green shoot or twig from Thallium's bright green spectral emission lines.


 

Facts about the Classification of the Element Thallium
Thallium is classified in the 'Other Metals' section which can be located in groups 13, 14, and 15 of the Periodic Table. All of these elements are solid, have a relatively high density and are opaque.
 

Brief Facts about the Discovery and History of the Element Thallium
Thallium was discovered by Sir William Crookes in England in 1861. Claude-Auguste Lamy and Sir William Crookes isolated the metal independent of each other in 1862.
 

Occurrence of the element Thallium in the Atmosphere
Obtained from crookesite, hutchinsonite & lorandite
 

Common Uses of Thallium
Photocells
Rat poison
Ant killer
Thallium bromide-iodide crystals have been used as infrared optical materials
Gamma radiation detection equipment
Medical applications for the treatment of skin infections
 

The Properties of the Element Thallium

Name of Element : Thallium
Symbol of Element : Tl
Atomic Number of Thallium : 81
Atomic Mass: 204.3833 amu
Melting Point: 303.5 C - 576.65 K
Boiling Point: 1457.0 C - 1730.15 K
Number of Protons/Electrons in Thallium : 81
Number of Neutrons in Thallium : 123
Crystal Structure: Hexagonal
Density @ 293 K: 11.85 g/cm3
Color of Thallium : bluish-gray
 


The element Thallium and the Periodic Table
Find out more facts about Thallium on the Periodic Table which arranges every chemical element according to its atomic number, as based on the periodic law, so that chemical elements with similar properties are in the same column. Our Periodic Table is simple to use - just click on the symbol for Thallium for additional facts and info and for an instant comparison of the Atomic Weight, Melting Point, Boiling Point and Mass - G/cc of Thallium with any other element. An invaluable source for more interesting facts and information about the Thallium element and as a Chemistry reference guide.
 

Facts and Info about the element Argon - IUPAC and the Modern Standardised Periodic Table
The Standardised Periodic Table in use today was agreed by the International Union of Pure Applied Chemistry, IUPAC, in 1985 which includes the Thallium element. The famous Russian Scientist, Dimitri Mendeleev, perceived the correct classification method of "the periodic table" for the 65 elements which were known in his time. Thallium was discovered by Sir William Crookes in England in 1861. Claude-Auguste Lamy and Sir William Crookes isolated the metal independent of each other in 1862. The Standardised Periodic Table now recognises more periods and elements than Dimitri Mendeleev knew in his day but still all fitting into his concept of the "Periodic Table" in which Thallium is just one element that can be found.
 

Facts and Info about the Element Thallium
 

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Information Facts about the Thallium Element