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Class XI Chemistry Atomic Structure 2
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Question 1
The first emission lines of hydrogen atomic spectrum in balmer series appears at:
Question 2
If the series limit of wavelength of lyman series for the hydrogen atom is 912A°,then the series limit of wavelength for Balmer series of hydrogen atom is:
Question 3
The ratio between time periods taken by electron in Bohr’s 1st and 2nd orbits for each revolution is:
Question 4
The de-Broglie wavelength of a particle with mass 1gm and velocity 100m/ sec is
Question 5
Three beams one of red light, yellow and other of blue light of the same intensity are incident on a metallic surface to emit photoelectrons. Which one of the three beams emits electrons having the greater kinetic energy?
Question 6
In 3d orbitals, the values of n and l are
Question 7
The electronic configuration of an element is 1s2 2s2 2p6 3s2 3p1. The number of valence electrons present in it are
Question 8
Two particles A and B are in motion. If the wavelength associated with particle X is 6 × 10-7 m, calculate the wavelength associated with particle Y if its momentum is double of X.
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