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Gadolinium - 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. Gadolinium, element number 64, is fundamental to the success of an MRI scan.

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As Steve explained, the lanthanide series is one of the best parts of the periodic table to study how the size of the atoms changes as you move from the left to the right of the table. What is the name of this progressive decline?

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