Short notes on d and f block elements
D block elements can be found from the third group to the twelth group of the modern periodic table. d block elements In s and p block elements, last electron enters in valence shell. In d block elements, last electron enters in penultimate shell. In f block elements, last electron enters in antepenultimate shell. Cu, Ag, and Au are called coinage elements. Metals like Pt, Ag, Hg, Cu are known as noble metal. Physical properties All d block elements are metals. These are hard, having metallic lusture, ductile (except Zn,Cd,Hg) Elements of group 12 are not considered as transition elements because transition element is that, which in elemental state or in any of it's general oxidation state has incompletely filled d orbital. d block elements have very high tendency to form complexes because of 1. availability of empty orbitals of suitable energy. 2. high charge density. d block elements have highest tendency to form alloys becau...