Unit I: Some Basic Concepts +Unit II: Structure of Atom+ Unit III: Classification of Elements and Periodicity in Properties
Unit I: Some Basic Concepts of Chemistry
Ø General Introduction:
· Importance of Chemistry
· Scope of chemistry
Ø Nature of matter Laws of chemical combination
Ø Dalton's atomic theory
Ø Concept of:
· Elements
· Atoms
· Molecules
Ø Atomic and molecular masses:
· Mole concept
· Molar mass
· Percentage composition
· Empirical and molecular formula
· Chemical reactions
· Stoichiometry and calculations based on stoichiometry
Handwritten Notes-Basic Concepts of Chemistry.pdf
Rapid Revision Notes-
Unit II: Structure of Atom
· Proton
· Neutron
· Atomic number
· Isotopes
· Isobars
Ø Models:
· Thomson's model and its limitations
· Rutherford's model and its limitations
· Bohr's model and its limitations
Ø Concept of shells and subshells
Ø Dual nature of matter and light
Ø de Broglie's relationship
Ø Heisenberg uncertainty principle
Ø Concept of orbitals
Ø Quantum numbers
Ø Shapes of s, p and d orbitals
Ø Rules for filling electrons in orbitals:
· Pauli's exclusion principle
· Hund's rule
· Electronic configuration of atoms
· Stability of half-filled and completely filled orbitals
Handwritten Notes-Structure_of_Atom.pdf
Rapid Revision Notes-
Unit III: Classification of Elements and Periodicity in Properties
Ø Significance of classification
Ø Brief history of the development of periodic table
Ø Modern periodic law
Ø Present form of periodic table
Ø Periodic trends in properties of elements:
· Atomic radii
· Ionic radii
· Inert gas radii
· Ionization enthalpy
· Electron gain enthalpy
· Electronegativity
· Valency
Ø Nomenclature of elements with atomic number greater than 100
Click on below given links to view/download:
Handwritten Notes- Classification of Elements and Periodicity in Properties.pdf
Rapid Revision Notes-
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