Important Applications of Broglie’s Hypothesis: De Broglie’s hypothesis is good enough to explain Bohr’s postulates. Bohr’s theory states that electron revolves only in orbits of particular radii and in an orbit […]
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Do you know ! You can easily find excess and limiting reactants Firstly , you must know that !! What is Limiting reactant and excess reactant? Limiting Reactant Definition: The reactant which […]
Louis de Broglie’s Hypothesis: (Dual nature of radiations) There arose a conflict about the nature of radiations. There were two schools of thoughts: (i) wave nature and (ii) particle nature […]
Moseley Experiment : Henry Moseley in 1913 performed an experiment and showed that the frequencies of emitted x-rays increase regularly with the number of positive charges in the nucleus of target elements, […]
Inner- Shell Transitions and Characteristic X-Rays: Hydrogen atom has only one shell in ground state. Its energy levels are of the order of few electron volts (ev) ; En = – […]
How X-Rays were discovered ? In 1895, a German Physicist, W. C. Röentgen, discovered X-Rays. He pointed, when high speed electrons are bombarded on a clean metal surface radiation of very short […]
As mass of an element is the atomic mass similarly mass of molecule is called molecular mass of a compound. What is Molecular mass ? Molecular mass is defined as “ the […]
Class 11 Chemistry Chemical Bonding Important MCQs with Brief Answers for Exams: A theory that explains the formation of covalent bond by the sharing of electrons is : 1.VSEPR 2.VBT 3.MOT 4.KMT […]
Do you Know !! Atomic Spectrum of Hydrogen : When Hydrogen gas is heated or subjected to electric discharge, its electron moves to higher energy orbits by absorbing energy. Subsequently when electron […]
Wave length (λ) of Radiations emitted during Electron jump: When electron jumps from one orbit to another, energy is emitted or absorbed in the form of radiations which have wave length (λ). […]