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For which of the following sets of quant...

For which of the following sets of quantum numbers, an electrons will have the highest energy ?

A

`3,2,1,1/2`

B

`4,2,-1,1/2`

C

`4,1,0,-1/2`

D

`5,0,0,1/2`

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The correct Answer is:
B
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When a particle as an electron exist in a box, three quantum numbers are necessary to describe the spatial distributioni fo electrons in atoms. The describe an electron in an atom completely, a fourth quantum number, m_(s) called the spin quantum number must be specified. This is because every electron has magnetic moment associated with it which is quantized in one of two possible orientations. Electrons having the same spin strongly repel each other and tend to occupy different region of space. This result of a fundamental law of nature is known as Pauli exclusion principle. For which one of the following sets of quantum numbers will an electron have the highest energy?

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AAKASH INSTITUTE ENGLISH-STRUCTURE OF ATOM-ASSIGNMENT (SECTION -A) Objective type questions
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  2. Which shell would be the first to have g sub-shell ?

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  3. For which of the following sets of quantum numbers, an electrons will ...

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  4. Arrange the following orbitals of H-atom in the increasing order of th...

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  5. Which of the following set of quantum number is possible ?

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  6. The maximum number of electrons in an atom which can have n=4 i...

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  7. An orbital is described with the help of a wave function. Since many w...

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  8. Assuming the velocity to be same , the wavelength of the waves ...

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  9. For a 'p' electron the orbial angular momentum is

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  10. Which electronic level would allow the hydrogen atom to absorb a photo...

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  11. Which of the following transition will emit maximum energy in hyd...

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  12. In an atom which has 2K, 8L , 18 M and 2N electrons in the ...

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  13. The prodensity curve for 2s electrons appears like

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  14. Any p-orbital can accommodate upto :

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  15. If the uncertainty in the position of an electron is zero the uncerta...

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  16. The number of radial nodes in 4s and 3p orbitals are respecti...

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  17. Which of the following orbital is with the four lobes present o...

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  18. Which of the following statements concerning the four quantum numbers ...

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  19. Which of the following has maximum number of unpaired electrons...

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  20. The two electrons in sub-shell of K-shell will differ in:

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