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Class XI Chemistry Atomic Structure 3

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Question 1

What hydrogen like ion has the wavelength difference between the first line of Balmer and Lyman series equal to 133nm

Question 2

The electron in a hydrogen atom in the ground state absorbs energy equal to 12.1 ev and gets elevated to the highest possible excited state. What will be change in the angular momentum of the electron ? (h=planck’s constant )

Question 3

What is the de-broglie wavelength of electron accelerated at 400V approximately?

Question 4

The de-Broglie wavelength of particle of mass 6.63 g moving with a velocity of 100 ms^‒1 is:

Question 5

What are the number of neutrons in dipositive zinc ions with mass number 70 is?

Question 6

What is the value of quantum numbers for valence electron of rubidium?

Question 7

Maximum numbers of electrons in a subshell is given by -

Question 8

Who among the following discovered the anode rays?

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