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OpenStudy (anonymous):
Looking across period 4 of the periodic table, potassium (atomic number 19) is followed by calcium (atomic number 20), which is followed by scandium (atomic number 21). Which element should have the largest atomic radius?
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OpenStudy (anonymous):
Potassium should definitely e the largest
OpenStudy (anonymous):
http://chemwiki.ucdavis.edu/ @api/deki/files/1187/Atomic_Radius_Trend_IK.png?size=bestfit&width=650&height=350&revision=1
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