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AP EAMCET2005ChemistryStructure of Atom

The atomic numbers of elements X, Y and Z are 19, 21 and 25 respectively. The number of electrons present in the M -shell of these elements follow the order

Options

  1. AZ>X>Y
  2. BX>Y>Z
  3. CZ>Y>X
  4. DY>Z>X

Correct answer

C. Z>Y>X

Step-by-step solution

Hence, the order of number of electrons in M shell is : Z>Y>X

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