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The radius of innermost electron orbit o...

The radius of innermost electron orbit of a hydrogen atom is `5.3xx10^(-11)m`. What is the radius of orbit in second excited state?

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`r_4/r_1=(n_4)^2/(n_1)^2=(4)^2/(1)^2=16xx5.3xx10^(-11)` m
`r_4=84.8xx10^(-11)` m
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MODERN PUBLICATION-ATOMS -Revision Exercise (Very Short )
  1. The energy of an electron in the nth Bohr orbit of hydrogen atom is

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  2. The short wavelength limits of Lyman, Paschen and Balmer series in the...

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  3. The velocity of electron in first orbit of H-atom as compared to the v...

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  4. What is the value of Rydberg constant?

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  5. Write an expression for Bohr's radius in hydrogen atom.

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  6. Write an empirical relation for the Balmer series of hydrogen atom.

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  7. What are the values of first and second excitation potential of hydrog...

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  8. Name the spectral series of hydrogen atom, which be in infrared region...

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  9. The radius of innermost electron orbit of a hydrogen atom is 5.3xx10^(...

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  10. Write the Bohr's frequency condition.

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  11. EXCITATION ENERGY AND EXCITATION POTENTIAL

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  12. Write the expression for total energy of an electron in n^(th) orbit.

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  13. The frequency of H(beta) line of lyman seris of hydrogen is

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  14. For an electron in the second orbit of hydrogen, the angular momentum ...

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  15. According to de Broglie's explanation of Bohr's second postulate of qu...

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  16. Which of the following series of H-atom lies in visible range?

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  17. The energy equivalent of one atomic mass unit is

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  18. The energy of an electron in the nth Bohr orbit of hydrogen atom is

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  19. The nuclear model of atom was given by

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  20. Which model of atom suggests that atom is a spherical cloud of positiv...

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