To which group of the periodic table does an element having electronic configuration [ Ar ] 3 d 5 4 s 2 belong?

Step-by-step solution

So according to the question we have to identify the element whose electronic configuration is give in the terms of noble gas So in periodic table the d - block are known as transition element So we know that Mn   =   Ar 3 d 5 4 s 2 So we know that from above electronic configuration that it is belong to the seventh group in the periodic table