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    DEEFRESCA's Avatar
    DEEFRESCA Posts: 1, Reputation: 1
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    #1

    Jan 16, 2013, 11:43 AM
    electron configuration
    Please help! The answer I got is 3 (not correct according to the answer key) and I'm not sure why?

    The electron configuration of a particular neutral atom is:
    1s^2 2s^2 2p^6 3s^2 3p^2.

    What is the number of unpaired electrons in this atom?
    wallykap's Avatar
    wallykap Posts: 65, Reputation: 1
    Junior Member
    		  
    #2

    Jan 17, 2013, 11:45 AM
    They should all be paired
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