Thankfully, most words in English are spelled the same wherever the language is spoken. An aluminum alloy is a composition consisting mainly of aluminum to which other elements have been added. The most abundant metallic element, it constitutes 8.1 percent of Earth’s crust. Aluminum definition is - a silver-white metallic chemical element with atomic number 13 that has good electrical and thermal conductivity, high reflectivity, and resistance to oxidation —often used before another noun. How to use aluminum in a sentence. The start was a modest one, however. Added elements include iron, copper, magnesium, silicon, and zinc. Aluminium is a very good conductor of electricity and heat.It is light and strong. It can be hammered into sheets or pulled out into wires ().It is a highly reactive metal, although it is corrosion resistant.. Aluminium prevents corrosion by forming a small, thin layer of aluminium oxide on its surface.This layer protects the metal by preventing oxygen from reaching it. Aluminum (Al), also spelled aluminium, chemical element, a lightweight, silvery-white metal of main Group 13 (IIIa, or boron group) of the periodic table. Because of the complexities of refining aluminum from ore, aluminum was considered more rare and precious than gold or silver through most of the 19th century. Aluminum, or aluminium (Al), is a silvery white metal with a melting point of 660 °C (1,220 °F) and a density of 2.7 grams per cubic cm. The other elements may make up as much as 15 percent of the alloy by mass. Aluminium is a silvery-white metal, the 13 element in the periodic table. The alloy is made by mixing together the elements when aluminum is molten (liquid), which cools to form a homogeneous solid solution. Aluminum is the most abundant metallic element in Earth ’s crust and the most widely used nonferrous metal. It's also the third most common chemical element on our planet after oxygen and silicon. Brits and Americans may share a mother tongue, but when it comes to spelling a handful of common terms, we just can’t seem to settle on a shared favorite—or is it favourite?—approach. We see an incredible wave of technological evolution and positive growth that is driven by a more sustainable and smart world. One surprising fact about aluminium is that it's the most widespread metal on Earth, making up more than 8% of the Earth's core mass. Aluminum is the American and Canadian spelling for the silver-white metallic element (number 13 on the periodic table) abundant in the earth’s crust.Aluminium is the preferred spelling outside North America.Neither term is superior to the other, and both are etymologically and logically justifiable. um (ăl′yə-mĭn′ē-əm) n. Chiefly British Variant of aluminum. “The ALUMINIUM trade fair is a must for any company or association working for such a vibrant sector. Aluminum and aluminium are two names for element 13 on the periodic table.In both cases, the element symbol is Al, although Americans and Canadians spell and pronounce the name aluminum, while the British (and most of the rest of the world) use the spelling and pronunciation of aluminium. In nature it occurs chemically combined with oxygen and other elements. Experience the international growth dynamics of the aluminum industry live on 6 – 8 October 2020 in Dusseldorf. Properties. The story of aluminum’s history of use in the U.S. now stretches over 100 years.