Complex compounds lecture 3

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UNIT 9: Classification of Elements and Periodicity in Properties
• Modern periodic law and long form of periodic table, periodic trends in properties of elements- atomic radii, ionic radii, ionization enthalpy, electron gain enthalpy, electronegativity, valence.
UNIT 4: Chemical Bonding and Molecular Structure
• Valence electrons, ionic bond, covalent bond, bond parameters, Lewis structure, polar character of covalent bond, valence bond theory, resonance, geometry of molecules, VSEPR theory, concept of hybridization involving s, p and d orbitals and shapes of some simple molecules, molecular orbital theory of homonuclear diatomic molecules (qualitative idea only). Hydrogen bond.
UNIT 10: p-Block Elements
• General Introduction to p-Block Elements.
Electronic configuration and General trends in physical properties of elements across the periods and down the groups, unique behaviour of the first element in each group.
UNIT 11: d and f Block Elements R.K.Sir 9807777216)
• General introduction, electronic configuration, characteristics of transition metals, general trends in properties of the first row transition metals- metallic character, ionization enthalpy, oxidation states, ionic radii, colour, catalytic property, magnetic properties, interstitial compounds, alloy formation. Preparation and properties of K2Cr2O7 and KMnO4.
• Lanthanoids- electronic configuration, oxidation states, chemical reactivity, and lanthanoid contraction and its consequences. R.K.Sir 9807777216)
• Actinoids: Electronic configuration, oxidation states and comparison with lanthanoids.
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UNIT 12: Coordination Compounds
• Coordination compounds: Introduction, ligands, coordination number, colour, magnetic properties and shapes, IUPAC nomenclature of mononuclear coordination compounds, isomerism (structural and stereo) bonding, Werner’s theory VBT,CFT; importance of coordination compounds (in qualitative analysis, biological systems).