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Neil bohr postulate |
| Answer» <html><body><a href="https://interviewquestions.tuteehub.com/tag/bohr-400140" style="font-weight:bold;" target="_blank" title="Click to know more about BOHR">BOHR</a>'s Postulate :1} An atom has a number of stable orbits in which an electron can reside without the emission of radiant energy. Each orbit corresponds, to a certain energy level.2} An electron may jump spontaneously from one orbit (energy level E1) to the other orbit (energy level E2) (E2 > E1); then the energy change AE in the electron jump is given by Planck’s equation ∆E = E2 -E1 = hv Where, h = Planck’s constant v = frequency of light emitted.3} The motion of an electron in a circular orbit is restricted in such a manner that its angular momentum is an integral multiple of h/2π, Thusmvr = nh/2π, where m = mass of the electronv = velocity of the electronr = radius of the orbit <a href="https://interviewquestions.tuteehub.com/tag/n-568463" style="font-weight:bold;" target="_blank" title="Click to know more about N">N</a> = an integer called principal quantum number of the electron.4} A special surface around nucleus which contained orbits of equal energy and radius was called shell. These <a href="https://interviewquestions.tuteehub.com/tag/shells-1205319" style="font-weight:bold;" target="_blank" title="Click to know more about SHELLS">SHELLS</a> are numbered from inside to outwards as 1, 2, 3, 4 etc. and called <a href="https://interviewquestions.tuteehub.com/tag/k-527196" style="font-weight:bold;" target="_blank" title="Click to know more about K">K</a>, L, M, N etc., respectively.Hope it helps you...Mark it as Brainliest...</body></html> | |