Question

what is the third transition series​

Answer 1

Answer:

he third series extends from lanthanum (symbol La, atomic number 57) to mercury (symbol Hg, atomic number 80). These three main transition series are included in the set of 30 elements often called the d-block transition metals.

Answer 2

Answer:

The third series extends from lanthanum (symbol La, atomic number 57) to mercury (symbol Hg, atomic number 80). These three maintransition series are included in the set of 30 elements often called the d-blocktransition metals.