/10 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 12345678910 Chapter 12 : Atoms This Quiz Contains a set of 10 Questions. The Passing Cut-off is 60%. To start the Quiz, click on the Start Button. All the Best! 1 / 10 The longest wavelength in Balmer series corresponds to transition 3→2 4→2 5→2 6→2 2 / 10 A hydrogen-like ion has wavelength 30.4 nm in the transition of electron from n = 2 → 1. The ion is Li²⁺ He⁺ B⁴⁺ C⁵⁺ 3 / 10 The emission of radiation from an atom occurs when an electron Falls to a lower level Moves to higher level Remains in the same orbit Gains mass 4 / 10 Bohr model assumes electrons move in All orbits Infinite orbits Only allowed orbits Random paths 5 / 10 Bohr’s quantisation condition is (mvr =) nh nh/2π nh/2 n2h 6 / 10 The wavelength of Lyman limit (n = ∞ → 1) is approx. 912 Å 656 nm 122 nm 486 nm 7 / 10 De Broglie wavelength of a moving particle is given by: hν mc2 hp hp 8 / 10 The wavelength associated with an electron in nth orbit is: 2πr nπr πr 2πr/n 9 / 10 The angular momentum of electron in the first orbit is h2π 2hπ 3h2π 0 10 / 10 Bohr model is applicable mainly to Multi-electron atoms Molecules Hydrogen-like atoms All solids Your score is 0% Restart quiz
