Describe Planck’s Quantum Theory of Electromagnetic Radiation

Planck’s Quantum Theory of Electromagnetic Radiation Some of the experimental phenomenon such as diffraction and interference can be explained by the wave nature of the......

Explain Wave Nature of Electromagnetic Radiation

Wave Nature of Electromagnetic Radiation: James Maxwell (1870) was the first to give a comprehensive explanation about the interaction between the charged bodies and the......

Explain Bohr’s Model of Atom

Bohr’s Model of Atom: Historically, results observed from the studies of interactions of radiations with matter have provided immense information regarding the structure of atoms and......

Drawbacks of Rutherford Model

Rutherford nuclear model of an atom is like a small scale solar system with the nucleus playing the role of the massive sun and the......

Define and Describe on Atomic Number

The presence of positive charge on the nucleus is due to the protons in the nucleus. As established earlier, the charge on the proton is......

Describe Rutherford’s Nuclear Model of Atom

Rutherford’s Nuclear Model of Atom: Rutherford and his students (Hans Geiger and Ernest Marsden) bombarded very thin gold foil with α-particles. Rutherford’s famous α-particle scattering......

Explain Thomson Model of Atom

J. J. Thomson, in 1898, proposed that an atom possesses a spherical shape (radius approximately 10-10 m) in which the positive charge is uniformly distributed.......

Describe on Discovery of Protons and Neutrons

Discovery of Protons and Neutrons Electrical discharge carried out in the modified cathode ray tube led to the discovery of particles carrying positive charge, also......

What is Charge to Mass Ratio of Electron

In 1897, British physicist J.J. Thomson measured the ratio of electrical charge (e) to the mass of electron (me) by using cathode ray tube and......

How to Calculate Charge on Electron

R.A. Millikan (1868 1953) devised a method known as oil drop experiment (1906-14), to determine the charge on the electrons. 1-le found that the charge......

What is Pauli’s exclusion principle?

Pauli’s exclusion principle states that “No two electrons in an atom can have the same values for the 4 quantum numbers. That is in an......

The limitations of Bohr’s atomic model

Bohr’s theory of atomic model was quite successful in explaining the stability of atom and the line spectrum of hydrogen atom. However, several discrepancies were......