Atomic Structure

Science > Chemistry > Atomic Structure

Radioactivity

  • Characteristics of Natural Radioactivity
  • Characteristics of Alpha Particles
  • Characteristics of Beta Particles
  • Characteristics of Gamma Rays

Cathode Rays

  • Construction of Discharge Tube
  • Different Stages of Discharge
  • Characteristics of Cathode Rays
  • Effect of Electric Field
  • Effect of Magnetic Field
  • Uses of Cathode Rays
  • Importance of Cathode Rays

Discovery of Electrons

  • Assumptions of Dalton’s Atomic Theory
  • Discovery of Electrons
  • Characteristics of Cathode Rays
  • Charge to Mass Ratio
  • Millikan Experiment

Discovery of Protons and Neutrons

  • Origin of Positive Rays
  • Characteristics of Canal rays
  • Discovery of Proton
  • Characteristics of Proton
  • Discovery of Neutron
  • Characteristics of Neutron
  • Discovery of X-Rays
  • Characteristics of X-Rays
  • Contribution of Mosley
  • Concept of Isotopes, Isobars, and Isotones

Problems on Atomic Number, Mass Number, and Neutron Number

Problems on Calculation of Number and Mass of Electrons, Protons, and Neutrons, in an atom, Molecule, and species

Rutherford’s Model of an Atom

  • Thomson’s Model of an atom
  • Rutherford’s Experiment
  • Rutherford’s Model of an Atom
  • Limitations of  Rutherford’s Model of an Atom

Dual Nature of Radiation

  • Wave Nature of Radiations
  • Electromagnetic Nature of Radiations
  • Particle Nature of Radiations
  • de Broglie’s Hypothesis

Bohr’s Model of an atom 

  • Postulates of Bohr’s Theory
  • Merits of Bohr’s Theory
  • Demerits of Bohr’s Theory

Heisenberg’s Uncertainty Principle

  • Heisenberg’s Uncertainty Principle
  • Significance of Heisenberg’s Uncertainty Principle
  • Schrodinger Wave Equation
  • Concept of Orbitals

Quantum Model of an Atom

  • Principal Quantum Number
  • Concept of Quantum Numbers
  • Azimuthal Quantum Number
  • Magnetic Quantum Number
  • Spin  Quantum Number

Quantum Numbers and Shape of Orbitals

  • Principal, Azimuthal, Magnetic, Spin Quantum Numbers
  • s orbital
  • p orbital
  • d orbital
  • f orbital

Electronic Configuration

  • Aufbau Principle and Diagram
  • Pauli’s Exclusion Principle
  • Hund’s Rule of Maximum Multiplicity
  • Stability of Completely and Exactly Half Filled Orbitals
  • Anomalous Electronic Configuration of Copper and Chromium
  • Electronic Configuration of First 30 Elements

Science > Chemistry > Atomic Structure