PRESENTATION OUTLINE
HONORS CHEMISTRY ELEMENT PRESENTATION
Chemical Symbol: Ra
Name: Radium
Atomic Number: 88
Atomic Mass: 226
In 1898, Pierre Curie, French physicist,and Marie Curie, first woman in France to receive a doctorate degree, discovered Radium.
Common Use: Treating Cancer
Physical Property: solid; metal
Fun Fact: It oxidizes when exposed to air, turning from almost pure white to black.
Chemical Symbol: Xe
Name: Xenon
Atomic Number: 54
Atomic Mass: 131.30
Xenon was discovered by Sir William Ramsey, a Scottish chemist, and Morris M. Travers, and English chemist, on July 12, 1898, shortly after their discovery of krypton and neon.
Physical Property: gas
Common Use: powerful lamps, bubble chambers
Fun Fact: Xenon produces a vibrant white flash of light when full of electricity and is used in strobe lights.
Chemical Symbol: Pr
Name: Praseodymium
Atomic Number: 59
Atomic Mass: 140.90765
Praseodymium was first discovered in 1885, in Vienna, by German chemist, Carl F. Auer von Welsbach
Physical Property: metal
Common Use: creating high-strength metals that are used in aircraft engines.
Fun Fact: Praseodymium is named from the Greek word for green since it oxidizes in air to form a green coating.
Chemical Symbol: Lu
Name: Lutetium
Atomic Number: 71
Atomic Mass:174.97
In 1907, Georges Urbain, a French chemist, discovered Lutetium.
Physical Property: metal
Common Use: catalyst for cracking hydrocarbons in oil refineries.
Fun Fact: Lutetium is one of the most expensive rare earth metals, costing approximately $10,000 per kilogram.
Chemical Symbol: Ni
Name: Nickel
Atomic Number: 28
Atomic Mass: 58.6934
Nickel was discovered by Axel Fredrik, a Swedish chemist, in 1751.
Physical Property: transition metal
Common Use: used in stainless steel, to plate other metals to protect them, and in batteries and coins.
Fun Fact: Pure nickel is rarely found on Earth.
Chemical Symbol: Mt
Name: Meitnerium
Atomic Number: 109
Atomic Mass: 266.0 amu
Meitnerium was first formed by research scientists led by Peter Armbruster and Gottfried Müzeneber at the Heavy Ion Research Laboratory in Darmstadt, Germany in 1982.
Physical Property: transition metal; solid
Common Use: only used in research
Fun Fact: fewer than 10 atoms of meitnerium have ever been made.
Chemical Symbol: Se
Name: Selenium
Atomic Number: 34
Atomic Mass: 78.96 +/- 0.03 U
Jöns Berzelius, a Swedish chemist, discovered selenium in 1817 as an impurity in sulphuric acid.
Physical Property: can exist in two forms: silvery metal or as a red powder
Common Use: additive to gas
Fun Fact: Selenium is named after Selene, the Greek goddess of the moon.
