4/17/2023 0 Comments Aluminum periodic tableFor decades, aluminum was more highly prized than gold: Napoleon III, the first president of the French Second Republic beginning in 1848, proudly served his most honored guests using aluminum plates and cutlery, because it was such a rare metal, according to The Aluminum Association. Later scientists refined the process for wresting aluminum for alum, but were unable to bring the price down to practical levels. It isn't found in pure form in nature, however in the Earth's crust, aluminum occurs most frequently as a compound called alum (potassium aluminum sulfate).ĭanish chemist Hans Christian Oersted first managed to extract aluminum from alum in 1825, according to the Thomas Jefferson National Accelerator Facility. Hsu of the Massachusetts Institute of Technology. Most common isotopes: Al-27 (stable) and Al-26 (radioactive half-life 730,000 years)Īluminum forms in stars in a fusion reaction in which magnesium picks up an extra proton, according to Chemicool, a chemistry website created by David D.Number of isotopes (atoms of the same element with a different number of neutrons): 22, one stable.Boiling Point: 4,566 degrees F (2,519 degrees C).Melting Point: 1,220.58 degrees Fahrenheit (660.32 degrees Celsius).Density: 2.70 grams per cubic centimeter. Atomic Weight (average mass of the atom): 26.9815386.Atomic Symbol (on the Periodic Table of Elements): Al.Atomic Number (number of protons in the nucleus): 13.
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