What are d-block elements 12th class?
What are d-block elements 12th class? The d-block of the Periodic Table contains the elements of the groups 3-12 in which the dĀ·orbitals are progressively filled. There are mainly three series of the elements, 3d-series (Sc to Zn) 4d-series (Y to Cd) and 5d-series (La to Hg omitting Ce to Lu). The fourth 6d-series which […]