The atomic numbers of elements $X, Y$ and $Z$ are 19, 21 and 25 respectively. The number of electrons…

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
  1. $Z>X>Y$
  2. $X>Y>Z$
  3. $Z>Y>X$
  4. $Y>Z>X$

Solution


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

Asked in: AP EAMCET 2005

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