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j k

on 7 January 2013

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Transcript of Aluminum

by Jacqueline Kerlin Aluminum HOW DID ALUMINUM GET IT'S NAME? When Prussian chemist Johann Pott prepared the compound alumina from alum powder in the mid-18th century, scientists realized that alumina was made up of oxygen and some unknown metal. In the early 19th century British chemist Sir Humphry Davy began to examine the unknown metal in alumina. Eventually he named to metal "aluminum." PHYSICAL DESCRIPTION Aluminum has a huge amount of uses. The top 5 are: pots, pans, soda cans, airplanes, and power lines. Aluminum is a very important element. It is used
an a huge variety of products such as toasters, cars, airplanes, bicycles, cans, magnets, foil, and baseball bats. Aluminum is used so often because it is recyclable and is so abundant. Protons: 13
Electrons: 13
Neutrons: 14 WHO DISCOVERED ALUMINUM? Scientists suspected than an unknown
metal existed in alum powder as early as
1787, but they did not have a way to extract
it until 1825. Hans Christian Oersted, a
Danish chemist, was the first to produce tiny
amounts of aluminum. -Color: bright gray or silver
-State at room temperature: solid
-Melting point: 660.323°C
-Boiling point: 2519°C
-Aluminum is a metal
-Period: 3
-Group: 13
-Density: 2.702 grams per cubic centimeter
-Atomic Radii: 125 pm (pico-meter) Atomic number: 13
Atomic mass: 27
Atomic symbol: Al Aluminum is found in the Earth's crust. It is the most abundant metal found in the Earth's crust. But you can't just dig up aluminum. It is most commonly found in cryolite and has to be extracted. HOW IS ALUMINUM COMMONLY USED? WHY IS IT IMPORTANT? DIAGRAM OF ATOM Hans Christian Oersted Sir Humphry Davy ISOTOPE Aluminum has nine isotopes Al-27 is Aluminum's only stable isotope. Scientists
use Al-27 to date marine sediments, glacial ice, quartz in rock exposures, and meteorites. ISOTOPE Aluminum's isotope Al-26, is radioactive. It is used
to study the role of transport, deposition, sediment storage, and burial times. 26.98153863 25.98689169 FUN FACTS -American consumers and industry throw away enough aluminum to rebuild the entire U.S. commercial air fleet every three months.
- In Europe aluminum's name is changed slightly to "aluminium."
-In the early 18th century, aluminum was a much more valuable than gold or silver.
-The beverage industry uses more aluminum than they do in the manufacturing, packaging, car and airplane industry.
-One pound of aluminum a can make 30 soda cans; Twenty years ago it could only make 20.
Alum powder is used to
purify water A white or colorless mineral consisting of a fluoride of sodium and aluminum.
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