Aluminium - Periodic Table of Videos
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The team at periodicvideos has created a TED-Ed Lesson for every element of the periodic table. This one is about aluminium (or aluminum), a metal once as precious as gold, now used for wrapping a sandwich.
If you reverse the letters in the symbol Al, you get the symbol of another element, La. Interestingly, the symbols of the elements immediately below Al in group 13 can also be reversed to give another element, for example Ga/Ag. How many similar pairs of elements can you find in the periodic table?
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