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Aluminium (or aluminum in North American English) is a chemical element; it has symbol Al and atomic number 13. Aluminium has a density lower than that of other common metals, about one-third that of steel. It has a great affinity towards oxygen, forming a protective layer of oxide on the surface when exposed to air.
Aluminium was used heavily in aircraft production and was a strategic material of extreme importance; so much so that when Alcoa (successor of Hall's Pittsburgh Reduction Company and the aluminium production monopolist in the United States at the time) did not expand its production, the United States Secretary of the Interior proclaimed in 1941 ...
CONCENTRATE YOURSELVES ON IMPROVING THE ARTICLE, NOT DISCUSSING WHETHER WE SHOULD USE THE CORRECT (-IUM) OR INCORRECT (-UM) SPELLING! Admins- I think that this page should be shut down immediately. I'm American. I call it aluminum. I don't care if you use aluminium in the article. It's nice that the article notes there is a spelling difference.
Aluminium–magnesium alloys are both lighter than other aluminium alloys and much less flammable than other alloys that contain a very high percentage of magnesium. [ 2 ] Aluminium alloy surfaces will develop a white, protective layer of aluminium oxide if left unprotected by anodizing and/or correct painting procedures.
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Expository essays are often assigned as a part of SAT and other standardized testing or as homework for high school and college students. Descriptive Determining the purpose, considering the audience, creating a dominant impression, using descriptive language, and organizing the description are the rhetorical choices to consider when using a ...
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