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What element in the fourth period is an exception to the Aufbau principle? a. Li c. Ca b. Cr d. Br
Cr (chromium) is an exception to the Aufbau principle.
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Asked 9/9/2013 10:33:04 AM
Updated 7/12/2015 3:22:24 PM
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Cr (chromium) is an exception to the Aufbau principle.
Added 7/12/2015 3:22:24 PM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [7/12/2015 3:39:32 PM]
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