Question

whst are transition element ?why are they called so? name the different transition series

Answer 1

d -block elements is called transition elements !!!

Answer 2

The main group elements are actually in two groups: the s block and the p block. These two, let's call them sub groups, are separated in the Periodic Table by a special group of highly colorful compounds known as the transition metals. The transition metals represent groups 1B through 8B of the diagram below and are formed as electrons are filling in the d orbitals. This is why they are referred to as the d block. We will look at all of this in the lesson that follows.