ChemistryThe first element of each period in the periodic table has

The first element of each period in the periodic table has

  1. A
    two electrons in the first shell
  2. B
    one electron in the first shell
  3. C
    one s-electron in the outermost shell
  4. D
    8 electrons in the outermost shell

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    Solution:

    Each period starts from IA gp. of s-block with ns1 configuration.

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