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Correct order of radius of the first orb...

Correct order of radius of the first orbit of `H, He^+, Li^(2 +), Be^(3 +)` is :

A

`H gt He^(+) gt Li^(2+) gt Be^(3+)`

B

`Be^(3+) gt Li^(2+) gt He^(+) gt H`

C

`He^(+) gt Be^(3+) gt Li^(2+) gt H`

D

`He^(+) gt H gt Li^(2+) gt Be^(3+)`

Text Solution

Verified by Experts

The correct Answer is:
A
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OP TANDON-ATOMIC STRUCTURE -Set-2
  1. Correct order of radius of the first orbit of H, He^+, Li^(2 +), Be^(3...

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  2. Which is the correct relationship? (a). E(1) of H=1//2E(2) of He^(+)=1...

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  3. Which is correct for any kind of species?

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  4. Number of visible lines when an electron returns from 5th orbit to gro...

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  5. Quantum numbers l=2 and m=0 represent which orbital?

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  6. If n and l are respectively the principal and azimuthal quantum number...

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  7. Order of no. of revolutions/sec gamma(1),gamma(2),gamma(3) and gamma(4...

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  8. Consider the following statements: (a) Electron density in the XY pl...

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  9. The first emission line in the H-atom spectrum in the Balmer series ap...

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  10. 1 BM is equal to:

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  11. Radial probability distribution curve is shown for s-orbital. The curv...

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  12. dz^(2) orbital has:

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  13. When a light of frequency v(1) is incident on a metal surface the phot...

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  14. Heisenberg's uncertainty principle is not valid for:

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  15. Consider these electronic configurations for neutral atoms: (i) 1s^(...

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  16. For the energy levels in an ato which one of the following statements ...

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  17. Which of the following statements are correct for an electron that has...

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  18. The angular momentum of electron can have the value (s) :

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  19. Which of the following statements is/are wrong?

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  20. Consider the following sets of quantum numbers. (i) {:(n,l,m,s,),(3,...

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