Had three electrons been possible to be placed in an orbital, the block of potassium in the periodic table would be:

  1. A

    s

  2. B

    p

  3. C

    d

  4. D

    f

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    Solution:

    The electronic configuration for this case can be given as,

    1s2,2s2,2p6,3s2,3p6,4s1

    This electronic configuration considering given conditions can be given as,

    1s3,2s3,3p9,3s3,3p1
    So, the block of potassium in the periodic table would be p.

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