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O(2)molecules consists of two oxygen ato...

`O_(2)`molecules consists of two oxygen atoms. In the molecules , nuclear force between the nuclei of the two atoms

A

is not important because nuelear forces are short-ranged

B

is not important as electrostaic force for binding the two atoms

C

cancels the replusive electrosatatic force between the nuclei

D

is not important because oxygen nucleus have euqal number of netrons and protons

Text Solution

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The correct Answer is:
A
In the molecules, nuclear force between the nuclei of the two atom is not important because nuclear forces are short-ranged.
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NCERT EXEMPLAR-ATOMS-Atoms
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  2. For he ground state , the electron int eh H-atom has an angular moment...

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  3. O(2)molecules consists of two oxygen atoms. In the molecules , nuclear...

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  4. Two H atoms in the ground state collide in elastically. The maximum am...

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  5. A set of atom in an excited state decays

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  6. An ionised H-molecules consists of an electron and wo protons. The pro...

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  7. Consider aimimg a beam of free electrons to wards free atoms . When th...

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  8. The bhor model for the spectra of H-atom

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

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

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

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

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

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

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

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

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

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

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

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

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