2. Solved Papers
  3. EAMCET Medical

EAMCET Medical EAMCET Medical Solved Paper-2007

  • question_answer
    The atomic number of an element M is 26. How many electrons are present in the M-shell of the element in its \[{{\text{M}}^{3+}}\] state?

    A)  11                                         

    B)  15

    C)  14                                         

    D)  13

    Correct Answer: D

    Solution :

                     
    \[{{K}_{2}}\] L M N
    \[M(26)\] \[1{{s}^{2}},\] \[2{{s}^{2}}2{{p}^{6}},\] \[3{{s}^{2}}3{{p}^{6}}3{{d}^{6}}\] \[4{{s}^{2}}\]
    \[{{M}^{3+}}\] \[1{{s}^{2}},\] \[2{{s}^{2}}2{{p}^{6}},\] \[3{{s}^{2}}3{{p}^{6}}3{{d}^{5}},\] \[4{{s}^{0}}\]
    Hence, 13 electrons are present in the M-shell  of \[{{M}^{3+}}\]state.


You need to login to perform this action.
You will be redirected in 3 sec spinner