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If the atom .(100)Frn^(257) follows the ...

If the atom `._(100)Frn^(257)` follows the Bohr model and the radius of `._(100)Fm^(257)` is n times the Bohr radius, then find `n`.

A

100

B

200

C

4

D

`(1)/(4)`

Text Solution

Verified by Experts

The correct Answer is:
D
For `""_(100)Fm^(257)` atom electron will be in l, m, n, o, p orbit.
`:.` Electron will be residing upto `5^(th)` orbit,
`:.r_(p)=(p^(2))/(Z)r_(0)`
`nr_(0)=((5)^(2))/(100)r_(0)`
`:.nr_(0)=(1)/(4)r_(0)" ":.n=(1)/(4)`
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KUMAR PRAKASHAN-ATOMS-Section-D (Multiple Choice Questions (MCQs)) (MCQs From .DARPAN Based On Textbook) (Bohr Model of Hydrogen Atom )
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  6. The ratio of first three Bohr radii is ………..

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  8. If radius of first orbit in hydrogen atom is 0.53Å, then what will be ...

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  10. the ratio of the radii of n = 10 orbit of hydrogen and Li^(+2) ion is ...

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  11. in which of the following system will the radius of the second orbit b...

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  12. Out of following which will have minimum first orbital radius?

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  13. According to Bohr model, energy of electron in n^(th) orbit is ...... ...

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  14. The ratio of energies of electron in the first excited state to its se...

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  15. The velocity of electron v in the second orbit of hydrogen, then its v...

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  16. In a hydrogen atom, the centripetal force is furnished by the coloumb ...

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  17. The angular speed of the electron in the n^(th) Bohr orbit of the hydr...

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  18. The linear speed of the electron in the nth Bohor orbit of the hydroge...

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  19. How much energy is required to send the electron at infinite distance ...

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  20. Linear momentum of electron revolving in n^(th) orbit of atom p=(nh)/(...

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