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NEET2009ChemistryStructure of AtomActual

The atomic number of an element ' M ' is 26. How many electrons are present in the M -shell of the element in its M³⁺ state ?

Options

  1. A11
  2. B15
  3. C14
  4. D13

Correct answer

D. 13

Step-by-step solution

array l|c|c|c|c & K & L & M & N M (26) & 1 s^2, & 2 s^2 2 p^6, & 3 s^2 3 p^6 3 d^6 & 4 s^2 M ³⁺ & 1 s^2, & 2 s^2 2 p^6, & 3 s^2 3 p^6 3 d^5, & 4 s^0 array Hence, 13 electrons are present in the M -shell of M³⁺ state.

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