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The radius of hydrogen atom in its groun...

The radius of hydrogen atom in its ground state is `5.3 xx 10^(-11)m`. After collision with an electron it is found to have a radius of `21.2 xx 10^(-11)m`. What is the principle quantum number of `n` of the final state of the atom ?

A

n=4

B

n=5

C

n=16

D

n=3

Text Solution

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The correct Answer is:
B
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TARGET PUBLICATION-ATOMS, MOLECULES AND NUCLEI -Critical Thinking
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  2. A particle of charge q and mass m is moving with constant speed v and ...

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  4. When an electron in hydrogen atom is excited, from its 4th to 5the sta...

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  5. A ground state hydrogen atom has an energy of -13.6 eV. If the electro...

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  6. The orbital velocity of the electron in the ground state of hydrogen a...

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  9. The longest wavelength limit of Lyman series is

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  10. An electron jumps from the 4th orbit to the 1st orbit of hydrogen atom...

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  11. A monochromatic beam of light is absorbed by a collector of ground sta...

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  12. The shortest wavelength in H sopecitrum of lyman series when R(H) = 1...

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  13. The ratio of the frequencies of the long wavelength limits of the Brac...

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  14. The first line of Balmer series has wvaelength 6563 Å. What will be th...

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  15. If series limit of Balmer series is 6400 Å, then series limit of Pasch...

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  16. An electron jumps from 3rd to 2nd orbit of hydrogen atom. Taking the R...

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  17. The wavelength of emitted radiation in terms of R (the Rydberg constan...

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  18. Shortest wavelength in the Lymann series is 912 Å. The longest wavelen...

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  19. The wavelength of the first lime of the Lyman series of hydrogen is 12...

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