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by tryonskyl
Last updated 6 years ago

Chemical Elements

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History of ElementDiscovered by: Jons Jacob Berzelius in 1829Discovered in SwedenThorium is a radioactive actinide metal, thorium is one of the four radiative elements that still occurs in quantity in nature as a primordial element.


Thorium is used...~ in a type of lantern mantel known as a Welsbach mantle ~ (thorium oxide) to make glass with high index of refraction that is used to make high quality camera lenses ~ as a source of nuclear power~ to coat the tungsten wire found in eleronic equipment ~ (thorium dioxide) for heat resstant ceramics~ (thorium-magnesium) in the aerospace industry for aircraft engines

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Fun/Interesting Facts ~ Thorium was named after Thor, the Norse God of Thunder~ Thorium is slowly attacked by water, but does not dissolve readiy in most common acids, expcept hydrochloric ~ People will always be exposed to small amouts of thorium through air, food, and water, because it is found nearly everywhere on earth

Basic Information:Atomic Number: 90Atomic Mass: 232.0301amuNumber of Protons: 90Number of Neutrons: 142Number of Electrons: 90Boiling Point: Melting Point:Element Category: Metal Period: 7Group: 5

Fun/Interesting Facts Repeating~ Thorium is used as an alloying agent to improve magnesium's strength at high temperatures~ One ton of thorium can produce as much energy as 200 tons of uranium~ One pound of thorium equals the energy potential of about 3 million pounds of coal

Chemical Properties~ Radioactive Physical Properties~ Soild~ Luster~ Silvery


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