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Which of the following rules could expla...

Which of the following rules could explains the presence of three unpaired electrons in N-atoms ?

A

Hund.s rule

B

Aufbau principle

C

Heisenberg.s uncertainty principle

D

Pauli.s exclusion principle

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The correct Answer is:
A
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AAKASH SERIES-ATOMIC STRUCTURE-Level - I (MAIN) (Exercise - VI (Miscellaneous))
  1. Let A(n) be the area enclosed by n^(th) orbit in the H-atoms. The grap...

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  2. Which of the following is incorrect for d-subshell (or) orbital

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  3. Maximum probability of finding an electron along xy orbital is

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  4. Which of the following relationship is correct ?

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  5. How many electrons in atom can have n =4, =2, m=-2 and s = +(1)/(2) ?

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  6. The quantum numbers of four electrons (e(1) " to " e(4)) are given bel...

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  7. A metal surface having v(0) as threshold frequency is incident by ligh...

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  8. Which statement are correct ?

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  9. The work function (phi) of some metals is listed below. The number of ...

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  10. The orbital angular momentum of 3p electrons is :

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  11. H-atoms in ground state (13.6 eV) are excited by monochromatic radiati...

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  12. Balmer series spectral lines are observed in visible region, in the sp...

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  13. The potential energy of an electron in the hydrogen atom is -6.8 eV. I...

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  14. Which of the following rules could explains the presence of three unpa...

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  15. Number of waves produced by an electron in one complete revolution in ...

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  16. The mass of a particle is 10^(10)g and its radius is 2 xx 10^(-4)cm. I...

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  17. What is the shortest wavelength line in the Paschen series of Li^(2+) ...

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  18. The radii of maximum probability for 3s, 3p and 3d electrons are in th...

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  19. If the subsidiary quantum number of a subenergy level is 4, the maximu...

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  20. The iron atom, how many electrons atom have n=3 and l= 2 ?

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