In the fourth part of the series “Structure of Atom” Prof. Sabyashachi Mishra of IIT – Kharagpur goes into a deeper explanation of the atomic structure, with Neil Bhor’s Atomic Model and how it addresses the drawback of Rutherford’s atomic model. Postulated of Neil Bhor in details, concept of orbit and orbitals and energy emission in them. He also explains the particle and wave like nature of the matter and limitation of Neil Bhor’s atomic model.
This video tutorial covers the following areas of inorganic chemistry as per syllabus of class XI and XII NCERT and other major boards of India
Neil Bohr’s Model of Atom
Drawbacks of Rutherford’s atomic model
Stability of an atom
Postulates of Neil Bohr in details
Results obtained from Bohr’s Atomic Model
Orbits are numbered
Radius of Orbit
Speed of Electron in orbit n
Energy in orbit n
Concept of Free Electron – Ions
Interpreting Emissions spectrum of Hydrogen Atom by Bohr’s atomic model
Energy level analysed by emission spectrum and interpreting them by Bohr’s atomic model
Explaining Lyman Series, Balmer Series, Paschen Series,
Why we get a series of lines separated from each other in an emission spectrum of Hydrogen
When and why do we get bands in Emission Spectrum of Hydrogen
Limitations of Bohr’s Atomic Model
Can only explain a single electronic species.
Cannot explain the splitting of spectral lines in magnetic field or electric field thus Could not explain Zeeman Effect or Stark Effect
Cannot explain chemical bonding
de Broglie’s Hypothesis – Can Matter have a Wave Like Nature ?
Particle has a wave nature – an explanation