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Yttrium

BY: Chuck Layton. Yttrium. 39. Y Yttrium 89. Yttrium description . Atomic number: 39 Atomic mass: 89 Family 3 It is a metal Has 3 valence electrons State of matter: solid Shinny silver. History of Yttrium.

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Yttrium

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  1. BY: Chuck Layton Yttrium

  2. 39 Y Yttrium 89

  3. Yttrium description • Atomic number: 39 • Atomic mass: 89 • Family 3 • It is a metal • Has 3 valence electrons • State of matter: solid • Shinny silver

  4. History of Yttrium • Yttrium was discovered by Johan Gadolin, a Finnish chemist, while analyzing the composition of the mineral gadolinite in 1789. Gadolinite, which was named for Johan Gadolin, was discovered several years earlier in a quarry near the town of Ytterby, Sweden. Today, yttrium is primarily obtained through an ion exchange process from monazite sand a material rich in rare earth elements. Although metallic yttrium is not widely used, several of its compounds are. Yttrium oxide and yttrium orthovanadate are both combined with europium to produce the red phosphor used in color televisions Garnets made from yttrium andiron  are used as microwave filters in microwave communications equipment. Garnets made from yttrium and aluminum  are used in jewelry as simulated diamond.

  5. Uses in society • The largest use of yttrium is in the form of yttrium oxide, which is used to produce phosphors which give the red color in color television tubes. • It is also used in the making of microwave filters. • Yttrium is often used as an additive in alloys, and increases the strength of aluminum and magnesium alloys. • It is also used as a detoxifier for non-ferrous metals. • It has been used as a catalyst in ethylene polymerization. • Yttrium-90, a radioactive isotope, has a medical use in needles which have replaced the surgeon’s knife in killing pain-transmitting nerves in the spinal cord.

  6. Yttrium

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