Solution:
concept - Manganese ( ) is a transition element whose atomic number is 25. Manganese is a metal that resembles iron as they both have a silver grey colour. It is hard and very brittle, hard to melt, but easy to oxidize.Now, Manganese is second only to iron among the transition elements in its abundance in the earth's crust; it is roughly similar to iron in its physical and chemical properties but is harder and more brittle. Transition metals compose the d-block of the modern periodic table.
Its electronic configuration is
.Hence, Manganese ( ) is a d-block element. Thus, the correct option is (2).
