2007 ada practice test error? chem 67

[wall1two]

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how many unpaired electrons in 1s2 2s2 2p6 3s2 3p2?

i say 2, it says 3. no typo above, i copy and pasted from the pdf. what am i missing?

 

[Kahr]

This is a known error, read this thread:

http://forums.studentdoctor.net/showthread.php?t=784157&highlight=unpaired

But to answer you, you are correct, the answer is B.