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Radius of first orbit of hydrogen is 0.5...

Radius of first orbit of hydrogen is `0.53 Å`. The radius in fourth orbit is:

A

4.77 Å

B

1.06 Å

C

0.13 Å

D

2.22 Å

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-ATOMIC STRUCTURE-Objective exercise - 2B
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  2. in the Bohr hydrogen atom, the electronic transition emmiting light of...

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  3. Radius of first orbit of hydrogen is 0.53 Å. The radius in fourth orbi...

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  4. If the radius of first Bohr' orbit be alpha(0), then the radius of the...

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  5. An electron is moving in Bohr's fourth orbit. Its de Broglie wavelengt...

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  6. What is the wavelength (in m) of a particle of mass 6.62 xx 10^(-29)g ...

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  7. The number of waves made by an electron moving in an orbit having a ma...

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  8. The mass of hydrogen atom is 1.66 xx 10^(-24)g and Planck's constant i...

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  9. Uncertainity in the position of an electron (mass = 9.1 xx 10^(-31) kg...

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  10. (A) : The radial probability distribution curves of 1s, 2p, 3d orbital...

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  11. The radial distribution curve of 2s sublevel consists of x nodes, x is

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  12. Which pair of orbitals have electronic density along the axis

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  13. The maximum number of sub-level, orbital and electrons in N shell of a...

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  14. The values of four quantum numbers of valence electron of an element a...

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  15. Number of electrons with +1/2 spin in n=3 is

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  16. Number of electrons with -1/2 spin in n=4 is

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  17. For which one of the following sets of quantum numbers an electron wil...

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  18. Which of the following sets of quantum numbers represents the highest ...

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  19. Which of the following elements has least number of electrons in its "...

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