The radii of second orbit of he+ is
Webb3 mars 2024 · The radius of first Bohr orbit of hydrogen atom is 0.529 A. Calculate the radii of (i) the third orbit of He+ ion and (ii) the second orbit of Li2+ ion.
The radii of second orbit of he+ is
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WebbSolution: Let us consider the nth bohr orbit, rn = 4π2mZe2n2h2 For hydrogen atom z = 1, first orbit n = 1 r1 = 4πr2me2h2 = 0.592A0 (i)For H e+ ion, Z = 2, third orbit, n = 3 r3(H e+) = 4π2m×2×e232h2 = 29 [4π2me2h2] = 29 × 0.592 = 2.380A0 (ii) For Li2+ ion, Z = 3, second orbit n = 2 r2 (Li2+) = 4π2m×3×e222h2 = 34 [4π2me2h2]= 0.705A0 WebbPractice Test 22 : Dual Nature of Radiation and Matter. 1. A particle of mass 1 mg has the same wavelength as an 8. Which of the following when falls on a metal will emit electron moving with a velocity of 3×106 ms–1. The velocity photoelectrons ? of the particle is: (a) UV radiations (b) Infrared radiation (a) 2.7× 10–18 ms–1 (b) 9 × 10–2 ms–1 (c) Radio …
Webb28 juni 2024 · answered ASSERTION - The radius of second orbit he He+ is equal to that of first orbit of hydrogen. REASON- The radius of an orbit in hydrogen like species is directly propotional to Z and inversely propotional to n. * Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion. WebbChapter –12. Atoms. 1. Geiger-Marsden’s α-particle Scattering Experiment On the suggestion of Rutherford, in 1911, his two associates, H. Geiger and E. Marsden, performed an experiment by bombarding α-particles (Helium nuclei Z = 2, A = 4) on a gold foil. Observations: (i) Most of the α-particles pass through the gold foil undeflected. (ii) A very …
Webb23 mars 2024 · Explanation: Formula for finding radius: 0.529 x n²/ Z where, n = orbit number Z = atomic number = Number of protons Ex: for He+ , Z = 2 - 1 = 1 for Be3+ , Z = … WebbThe ratio of radii of first orbit of H, He+ and Li2+ is: A 1 : 2 : 3 B 6 : 3 : 2 C 1 : 4 : 9 D 9 : 4 : 1 Solution The correct option is B 6 : 3 : 2 Radius of H-like species = n2 Z ×0.529 ∘A rH: …
WebbDpp on Mole Concept (Ncert) - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Q1. Bohr model can explain: (A) The sectrum of hydrogen atom (B) spectrum of an atom or ion containing one e- only. (C) The spectrum of hydrogen molecule. (D) The spectrum of He+ ion. Q2. Which concerning Bohr model is not true: (A) It …
Webb17 mars 2024 · The Bohr Theory gives accurate values for the energy levels in hydrogen-like atoms, but it has been improved upon in several respects. Hence, the radius of 2nd and 3rd Bohr orbit in a hydrogen atom is 2.116 and 4.761 Angstrom. Note: There are certain limitations to Bohr’s theory. dancing sheep cartoonhttp://www.adichemistry.com/jee/qb/atomic-structure/1/q2.html dancing sheep clipartWebb13 apr. 2024 · If 'e,' 'm,' and 'v' be the charge, mass, and velocity of the electron respectively, 'r' be the radius of the orbit, and Z be the atomic number, the equation for the radii of the permitted orbits is given by r = n 2 xr 1, where 'n' is the principal quantum number, and r 1 is the least allowed radius for a hydrogen atom, known as Bohr's radius having a value of … dancing sheep gifhttp://www.adichemistry.com/jee/qb/atomic-structure/1/q2.html birkenstock midtown sacramentoWebb28 mars 2024 · Mathematically the radius of an orbit can be given as: \({r_n} = \frac{{0.53{n^2}}}{Z}{\rm{{\dot A}}}\) Where: Z = atomic number, n = orbit number. So r ∝ … birkenstock medical clogsWebbIf radius of second orbit of He+ is x nm then the (1) SF4 (2) ClF3 radius of the first orbit of Li2+ will be (3) NH3 (4) PCl3 x dancing sheepWebb26 mars 2024 · he energy of the hydrogen atom in its nth orbit is En = \(-\frac{13.6}{n^2} ev\). The energy required for sending electron from 1st orbit to the 2nd o asked Feb 23, 2024 in Physics by Ritikgupta ( 38.5k points) birkenstock méxico outlet