Aluminum (Al)
The Element
The name comes from the Latin word alumen, for the mineral alum. The electron configuration is [Ne] 3s2 3p1. The element looks solid at room temperature and is a classification of other metals. Its crystal structure is cubic. Aluminum is not an element found in nature, it is found in the earth’s crust which is 8.2 percent of it. Aluminum is obtained from rocks called bauxite. It is the most available element. In the beginning, scientist suspected it was in the earth’s crust. There were many chemists who produced aluminum. The very first was Hans Christian Oersted in 1825. Its color is silvery-white with a bluish tint. The element is soft but it becomes strong and hard when combined with other elements. The atomic number of it is 13, which means that the atom has 13 protons therefore 13 electrons. It has 14 neutrons. The atomic weight is 26.98154. The melting point is 660.37 degrees Celsius. The boiling point is 2467 degrees Celsius. As for the atomic structure, the element has three energy levels. The first has 2, the second has 8 and the third has 3.
Compounds formed by the Element
A very important compound is dialuminum oxide Al2O3. The structure of dialuminum oxide is sometimes hexagonal. The structure is .It is one of the hardest substances known. It is formed by natural occurrence. Dialuminum oxide is formed from the reaction of metallic aluminum with oxygen gas. It is a white crystalline solid. Aluminum chloride has a formula of ALCl3. The structure is . It is mainly produced in the production of aluminum metal. It is white, but samples are often contaminated with iron trichloride, giving it a yellow color. The compound formula for dialuminum sulphide is Al2S3.The structure is . It is a ...
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"Chemical Elements.com - Aluminum (Al)." Chemical Elements.com - Aluminum (Al). N.p., n.d. Web. 19 Mar. 2014. .
Guerra, Tony. "What Is Aluminum Potassium Sulfate Used For?" EHow. Demand Media, 20 July 2011. Web. 19 Mar. 2014. .
National Accelerator Facility, Thomas Jefferson. "The Element Aluminum." It's Elemental -. Office of Science Education, n.d. Web. Mar. 2014. .
"What Is Aluminum Used For? - Curiosity." Curiosity. N.p., n.d. Web. 17 Mar. 2014. .
"What Is an Atomic Number?" What Is an Atomic Number? N.p., n.d. Web. 19 Mar. 2014. .
Aluminum is the third most abundant element and most abundant metal in the Earth’s crust. Aluminum is never found in the free element state in nature. It
Given that aluminum is the third most abundant substance as well as the most prominent metal in the Earth’s crust, repurposing it is beneficial to everyone. There are multiple ways to repurpose aluminum, however, a prominent method is converting aluminum into alum. While alum can be naturally occurring in areas of heavy weathering, that oxidize sulfide, and include potassium bearing minerals all occur, it can also be synthesized as shown in this experiment. By synthesizing alum, many practical applications arise. Medicinally, alum can be utilized to stop bleeding in minor cuts, as a treatment for gingivitis and gum bleeding, as well as a preservative for pickling fruits and vegetables. On a larger scale, alum can be used in flocculation to treat dirty water to make it drinkable. In this case, the alum binds to the heavier particles in the water, such as dirt and sand, and causes them to sink to the bottom of the container. Next, a simple filtering would need to be done to render the water
made from a form of aluminum soap mixed with the acid (Time, 2000). The formula was said to have
physics. The work of Ernest Rutherford, H. G. J. Moseley, and Niels Bohr on atomic
Aluminum is slightly hazardous in case of skin contact (irritant), non-hazardous in case of ingestion, and non-hazardous in case of inhalation.
When and how the element was discovered including who discovered it and the circumstances and/or investigations that lead to them discovering the element?
...lding Aluminum - Hot Rod Magazine." Hot Rod Magazine. HotRod, 3 Oct. 2013. Web. 28 Apr. 2014.
Aluminum is an element in the boron group with a symbol of Al, and an atomic number of 13. Aluminum is a very soft metal when pure but becomes strong and hard when alloyed, a malleable metal with a silvery gray color. Aluminum is a very reactive element so it is found in nature combined with other elements. Aluminum resists corrosion by the formation of a self-protecting oxide coating. Aluminum is the third most abundant element in the Earth’s crust, following oxygen and silicon. It makes up approximately 8% by weight of the Earth’s surface. Although this is evident, it is also apparent that aluminum is never found by itself in nature. All of the earth’s aluminum has combined with other elements to form compounds and in order to create new aluminum products; it has to be taken out of that specific compound. Aluminum does not rust like other elements, therefore it always remains strong and shiny, which means reused aluminum is almost identical to a brand new piece of metal. An electrochemical process creates aluminum. An electrochemical process is “the direct process end use in which electricity is used to cause a chemical transformation” ( E.I.A. Government). Major uses of electrochemical processes occur in the aluminum industry in which alumina is reduced to molten aluminum metal and oxygen, where than the aluminum can be used into making several different materials. Electrochemical processes, although very useful, can have serious environmental consequences. To help reduce the consequences that the production of aluminum creates, the idea of aluminum recycling comes into play.
Every kind of gemstone’s chemical formula is unique and its very own, and is used as a way to identify what kind of stone it is. More specifically, a chemical formula is a the way you identify a stone or any substance by the arrangement and quantity of it’s atoms and elements. The ruby’s chemical formula happens to be Al2O3, meaning it contains aluminum 2 atoms of aluminum, and 3 atoms of oxygen. These two elements are found in the quantities stated in Ruby’s, therefore introducing us to the chemical formula shown.
DISCOVERY : Titanium was first discovered in black sand known as “ILMENITE” , a mixture of titanium oxides and iron oxides by “ WILLIAM GREGOR”, the pastor of mannacan of parish in the year 1791 at England, and named his new metal as “MANACCANITE”, after his discovery a German chemist “MARTIN KLAPROTH” named it as “TITANIUM” after the TITANS, greek’s mythological beings of the earth and the name was preferred by other chemists but they believed Gregor as the original discoverer.Till 1910 pure titanium is not isolated and it was done by “ Mathew Hunter” after 119 years of its discovery.
"A periodic table is an arrangement of elements in which the elements are separated into groups based on a set of repeating properties." Basically it shows us all known elements in the world. For one to read the periodic table he should beware that the atomic number comes first in the square , and referring to the atomic number its the number of protons found in the nucleus of an atom. Following the atomic number is the symbol, which is usually the abbreviation of the element's name. For example Carbon is referred to as " C". Then, the element’s name is shown right after the symbol. Lastly, there's the mass number, which is the number of protons and neutrons in the nucleus of an atom. So simply for us to find the number of protons we automatically
BIBLIOGRAPHY Advantages to Aluminum. http://www.kaiserextrusion.com/advantage.html. November 28, 2000. Aluminum Facts. http://www.epa.gov/seahome/housewaste/src/alum.htm. November,28 2000. Bowman, Kenneth A. World Book Encyclopedia. "Aluminum." Chicago: World Book, Inc., 1992. Cobb, Cathy. Creations of Fire. New York: Plenum Press, 1995 Geary, Don. The Welder's Bible. Pensilvania: Tab Books, 1993. Knapp PhD, Brian. Aluminum. Connecticut: Grolier, 1996. Newmark, Dr. Ann. Chemistry. London: Dorling Kindersley, 1993. Walker, John R. Modern Metalworking. Illinois: The Goodheart-Willcox Company, Inc., 1985.
alloy. This is because the atoms in a pure metal are all equal in size
There are many different types of alloys; some are so common that they carry on a life beyond their metal bases. For example, 65-90% of copper mixed with 10-35% of zinc create the well known alloy brass, which provides increased resistance to corrosion in things like instruments and