Cathode ray tube experiment
Cathode ray discharge tube experiment : A cathode ray tube is made of glass containing two thin pieces of metal, called electrodes, sealed in it. The… Read More »Cathode ray tube experiment
Chemistry
Bohr’s atomic model
Neils Bohr proposed a model of an atom based on atomic spectra of hydrogen. He retained the basic concepts of Rutherford’s model i.e., the atom… Read More »Bohr’s atomic model
What are Quantum numbers ?
Quantum numbers – Definition A set of numbers used to describe an electron completely in an atom are called quantum numbers. Quantum numbers are used… Read More »What are Quantum numbers ?
Planck’s quantum theory
The postulates of Planck’s quantum theory are The emission of radiation is due to vibrations of charged particles (electrons) in the body. The emission is… Read More »Planck’s quantum theory
Electromagnetic radiation and its characteristics
Electromagnetic radiation When an electrically charged particle is accelerated alternating electric and magnetic fields are produced and transmitted. These fields are transmitted in the form… Read More »Electromagnetic radiation and its characteristics
de Broglie’s hypothesis
de Broglie proposed that the dual nature i.e., both particle nature and wave nature is associated with all the particles in motion. de Broglie suggested… Read More »de Broglie’s hypothesis
Rutherford’s Planetary model of Atom
Rutherford’s planetary model Rutherford atomic model says most of the space in the atom is empty (as most of the α – particles passed through… Read More »Rutherford’s Planetary model of Atom
What is an atom ?
What is an atom ? or Define atom The smallest particle of any substance is known as atom. An atom consists of electron, proton and… Read More »What is an atom ?
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