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The simple Bohr model is not applicable ...

The simple Bohr model is not applicable to `He^(4)` atom because

A

`He^(4)` is an inert gas

B

`He^(4)` has neutrons in the nucleus

C

`He^(4)` has one more electrons

D

electrons are not subject to central forces

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The correct Answer is:
C, D
The simple Bohr model is not applicable to `He^(4)` atom because `He^(4)` has one more electron and electron are not subject to central forces.
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NCERT EXEMPLAR-ATOMS-Atoms
  1. The bhor model for the spectra of H-atom

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  2. The balmer series for the H-atom can be ob-served

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  3. Let E=(-1me^(4))/(8epsilon(0)^(2)n^(2)h^(2)) be the energy of the n^(t...

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  4. The simple Bohr model is not applicable to He^(4) atom because

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  5. The mass of a H-atom is less than the sum of the masses of a proton an...

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  6. Imagine removing one electron from He^(4) and He^(3). Their energy lev...

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  7. When an electron falls from a higher energy to a lower energy level,...

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  8. Would the Bohr formula for the H-atom remain unchanged if proton had a...

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  9. Consider two different hydrogen atoms. The electron in each atom is in...

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  10. Positronium is just like a H-atom with the proton replaced by the posi...

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  11. Assume that their is no repulsive force be -tween the electrons in an ...

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  12. Using Bohr model, calculate the electric current created by the electr...

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  13. Show that the first few frequencies of light that are emitted when ele...

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  14. What is the minimum energy that must be given to a H atom in ground st...

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  15. The first four spectral lines in the Lyman series of a H-atom are lamb...

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  16. Deutrium was discovered in 1932 by Harold Urey by measuring the sma...

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  17. If a proton had a radius R and the charge was uniformaly fistributed ,...

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  18. In the Angular process as atom makes a transition to a lower state wit...

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  19. The inverse sequare law in electrostatic is |F| = (e^(2))/((4piepsi(0...

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  20. The Bohr model for the H-atom relies on the Coulomb's law of electrost...

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