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For all the basics about praseodymium, check out the Visual Elements Periodic Table.
For amazing photos and facts about praseodymium, check out The Elements by Theodore Gray.
The name, "praseodymium", is derived from the Greek “prasios didymos”, meaning green twin; it is one of two elements that makes up the mixture didymium. Its oxide is a striking green color.
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Why do you think it is important to have an International System of Units, in this case regarding temperature? Do you know the SI units of other physical measurements?
09/10/2014 • 
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