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Which of the following metals is diamagnetic? A. Potassium B. Cesium C. Barium D. Lithium

User Forseti
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To determine if an element is diamagnetic then we have to look at the electron pairing. If all electrons are paired then the element is diamagnetic. Barium has 56 electrons which mean all would be paired.

Answer: C (Barium)

User Gowansg
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