Fe atomic number = 26 atom has the electronic arrangement, Chemistry

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Fe(atomic number = 26) atom has the electronic arrangement:

(1) 2, 8,  8, 8        

(2) 2, 8, 16       

(3) 2, 8,14, 2            

(4) 2, 8, 12, 4

Ans:  2, 8,14, 2

 


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