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6 November, 19:09

Which element has 1s2s2p3s3p electron configuration?

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Answers (2)
  1. 6 November, 21:28
    0
    Correct Answer: Argon

    Reason:

    The orbital present in the element are 1s 2s 2 3s and 3p. If these orbitals are completely filled, the electronic configuration, will be 1s2 2s2 2p6 3s2 3p6. Thus, total electrons present in system is 18. This corresponds to element 'Ar'.
  2. 6 November, 21:45
    0
    To answer this problem, we need to count the electrons in the given configuration. The complete configuration is 1s2 2s2 2p6 3s2 3p6. There are 2+2+6+2+6 equal to 18 electrons. We find next the element with an atomic number of 18. That element is noble gas argon.
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