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MHT CET20249 May 2024Morning ShiftChemistryStructure of AtomActual

What is the number of electrons present in d-subshell if its atomic number is 27 and oxidation state is +2 ?

Options

  1. A8
  2. B7
  3. C6
  4. D5

Correct answer

B. 7

Step-by-step solution

The atomic number 27 and oxidation state of +2 is shown by Cobalt (Z=27) : [ Ar ] 3 ~d ^7 4 ~s ^2 . Hence, the number of electrons present in d- subshell is 7 .

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