2Which is a d-block element?
Answers
Answer:
D block elements are the elements which can be found from the third group to the twelfth group of the modern periodic table. The valence electrons of these elements fall under the d orbital. D block elements are also referred to as transition elements or transition metals. The first three rows of the d block elements which correspond to the 3d, 4d, and 5d orbitals
Explanation:
What are D Block Elements?
Elements having electrons (1 to 10) present in the d-orbital of the penultimate energy level and in the outer most ‘s’ orbital (1-2) are d block elements. Although electrons do not fill up ‘d’ orbital in the group 12 metals, their chemistry is similar in many ways to that of the preceding groups, and so considered as d block elements.
These elements typically display metallic qualities such as malleability and ductility, high values of electrical conductivity and thermal conductivity and good tensile strength. There are four series in the d block corresponding to the filling up of 3d, 4d, 5d or 6d orbitals.
3d- Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn
4d- Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd
5d- La, Hf, Ta, W, Re, Os, Ir, Pt, Au, Hg
6d- incomplete.
Hii
The d-block is in the middle of the periodic table and encompasses elements from groups 3 to 12; it starts in the 4th period. ... The d-block elements are all metals and most have one or more chemically active d-orbital electrons.