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प्रश्न
Which element from following has largest atomic radius?
पर्याय
Pm
Eu
Gd
Pr
MCQ
उत्तर
Pr
Explanation:
As atomic number in the lanthanide family rises, atomic radius falls. As a result, Pr, the element with the lowest atomic number among those listed, has the biggest atomic radius.
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Properties of Lanthanoids
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