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15 January, 03:25

The element x in group 17 has 3 shells write the complete sub shell electronic configuration

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Answers (2)
  1. 15 January, 03:41
    0
    2:8:7

    Explanation:

    The first shell can accommodate a maximum of 2 electrons, while the second level accommodates a maximum of 8 while the third last cell takes up the remaining 7 electrons
  2. 15 January, 03:42
    0
    The electron configuration would be:

    1s^2 2s^2 2p^6 3s^2 3p^5
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