ChemistryFind the number of electrons in the outermost shell of the element with atomic number 35 and mass 81.

Find the number of electrons in the outermost shell of the element with atomic number 35 and mass 81.

  1. A
    3
  2. B
    5
  3. C
    7
  4. D
    9

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    Solution:

    35=1s2,2s2,2p6,3s2,3p6,4s2,3d104p5

    Thus it contains 7 electrons in 4th or outermost shell.

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