The electronic configuration & atomic number, Chemistry

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The electronic configuration (outermost) of Mn+2  ion (atomic number of Mn= 25  ) in its ground state is:

(1) 3d5, 4so                         

(2) 3d4, 4s1 

(3) 3d3, 4s2                

(4) 3d2, 4s2, 4p2

Ans: 3d5, 4so

 


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