Thorium

=Thorium = By: Hannah

**Atomic Number: **  90

**Protons: **  90 **Electrons: **  90 **Neutrons: **  142 **<span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive;">Average Atomic Mass: ** <span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive;"> 232

<span style="color: #0000ff; font-family: 'Comic Sans MS',cursive;"><span style="background-color: #00ffff; font-family: 'Comic Sans MS',cursive;">**<span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive;">Isotopes: ** <span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive;"> 232Th

<span style="background-color: #ffffff; color: #0000ff; font-family: 'Comic Sans MS',cursive;"> <span style="background-color: #00ffff; font-family: 'Comic Sans MS',cursive;">**<span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive;">Discovery: ** <span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive;"> This element was discovered in 1828 by berzilius in a mineal that was givin to him

<span style="background-color: #00ffff; font-family: 'Comic Sans MS',cursive;">**<span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive;">Name: ** <span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive;"> Thorium was named after 'Thor' the mythological Scandinavian god of war. <span style="background-color: #ffffff; color: #0000ff; font-family: 'Comic Sans MS',cursive; font-size: 150%;">**Uses:** some of the uses this element can be used for are: <span style="background-color: #ffffff; color: #0000ff; font-family: 'Comic Sans MS',cursive; font-size: 210%;"> <span style="background-color: #ffffff; color: #0000ff; font-family: 'Comic Sans MS',cursive; font-size: 140%;"> <span style="background-color: #ffffff; color: #0000ff; font-family: 'Comic Sans MS',cursive; font-size: 140%;">
 * <span style="background-color: #ffffff; color: #0000ff; font-family: 'Comic Sans MS',cursive; font-size: 130%;"> alloying element for magnesium, imparting high strength and creep resistance at high temperaturesused to coat tungsten wire used in
 * <span style="background-color: #ffffff; color: #0000ff; font-family: 'Comic Sans MS',cursive; font-size: 130%;">electronic equipment because it has a low work-function and high electron emission

<span style="background-color: #00ffff; font-family: 'Comic Sans MS',cursive;">**<span style="background-color: #ffffff; color: #0000ff; font-family: 'Comic Sans MS',cursive; font-size: 150%;">Interesting Facts ** <span style="background-color: #ffffff; color: #0000ff; font-family: 'Comic Sans MS',cursive; font-size: 150%;">: <span style="background-color: #ffffff; color: #0000ff; font-family: 'Comic Sans MS',cursive; font-size: 140%;"> <span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive; font-size: 130%;"> <span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive; font-size: 130%;">
 * <span style="color: #0000ff; font-family: 'Comic Sans MS',cursive; font-size: 130%;">when pure, thorium is a silvery white metal which is air-stable and retains its lustre for several months
 * <span style="color: #0000ff; font-family: 'Comic Sans MS',cursive; font-size: 130%;">when contaminated with the oxide, thorium slowly tarnishes in air, becoming grey and finally black. <span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive; font-size: 130%;">

<span style="background-color: #00ffff; font-family: 'Comic Sans MS',cursive;">**<span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive; font-size: 130%;">Video: media type="youtube" key="KQ64Jm3dmSs" height="344" width="425" ** Sources: **
 * <span style="background-color: #ffffff; font-family: 'Comic Sans MS',cursive; font-size: 130%;">

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 * <span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;">Photo: <span style="font-family: arial,sans-serif; font-size: 13px; line-height: normal;"> [Elements/090/index.html%7CThorium picture|Thorium Photo]
 * <span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;">Video: [|youtube Thorium]
 * <span style="font-family: 'Comic Sans MS',cursive; font-size: 19px; line-height: 29px;"><span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;">[|Thorium] <span style="font-family: 'Comic Sans MS',cursive; font-size: 28.5px; line-height: 29px;"> <span style="font-family: 'Comic Sans MS',cursive;">
 * <span style="font-family: 'Comic Sans MS',cursive;"> <span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;">[|Thorium Isotopes]  <span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;"> <span style="font-family: 'Comic Sans MS',cursive;">
 * <span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;">[|Thorium History]