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Q. Complexation Behaviour of the f-block?
Ions of actinide and lanthanide elements have a strong tendency to form complexes with a variety of oxygen and nitrogen donor ligands. Perhaps, because of their comparatively higher charge to size ratio, the actinide ions have a greater tendency to form complexes than the lanthanides. Also, because of the existence of a large number of oxidation states, the complexation behaviour of actinides is more varied. The lanthanide and actinide ions form the most stable complexes with chelating ligands such as oxalic acid, tartaric acid, citric acid, nitric acid, ethylenediamine tetraacetic acid (EDTA) and 0-diketones. In these complexes the metal ions have very high coordination numbers. For case, the coordination number of the metal ion in [Th(acac)4]. [Ce(N03)4.(OPPh3)2] and [Ce(N03)6]2- is 8, 10, 12, respectively. In these complexes, the acetyl acetonate (acac) and the nitrate ligands are operating as bidentate ligands occupying two coordination sites around the metal ion. These metal ions form water soluble complexes with citric acid, tartaric acid and EDTA. The formation of water soluble complexes with these ligands facilitates separation of the metal ions by ion exchange chromatography.
draw dxy and dx2-dy2 atomic orbitals
The ground state term symbol for an electronic state is governed by : (1) Heisenberg's principle (2) Hund's rule (3) Aufbau principle (4) Pauli exclusion principle
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write 15 separation techniques with one diagram for each
The process of chromatography involves passing a mixture dissolved in the "mobile phase" through a stationary phase, which separates the analyte which is to be measured from the ot
Q. Determine Atomic Number and Mass Number? One of the four naturally taking place isotopes of chromium has a mass number of 53. Determine the number of electrons, protons and
define
I have this chemistry assignment. It basically says, "study and make a report on any two types of electrochemical cells". What do I do? I have no idea so please, I need some help.
Q. Describe Coordinated octahedral complexes? Six-coordinated octahedral complexes of the type Mubr, Ma 3 b 3 , Ma 3 b 2 c, Ma 3 bcd, Ma 2 bcd, Ma 2 bcde, Mabcd of would all g
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