Home
Class 11
CHEMISTRY
If the electronic configuration of nitro...

If the electronic configuration of nitrogen had `1s^(7)`, it would have energy lower than that of the normal ground 'state configuration `1s^(2)2s^(2)2p^(3)` because the electrons would be closer to the nucleus. Yet `1s^(7)` is not observe because it violates:

A

Heisenberg uncertainty principle

B

Hund's rule

C

Paul's exclusion priciple

D

Bohr postulates of stationary orbits

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF ATOMS

    BRILLIANT PUBLICATION|Exercise LEVEL - II (ASSERTION - REASON)|5 Videos

  • STRUCTURE OF ATOMS

    BRILLIANT PUBLICATION|Exercise LEVEL - I|107 Videos

  • STRUCTURE OF ATOMS

    BRILLIANT PUBLICATION|Exercise LEVEL - III (Linked Comprehension Type)|8 Videos

  • STATES OF MATTER

    BRILLIANT PUBLICATION|Exercise LEVEL III (Linked Comprehension Type )|9 Videos

  • THERMODYNAMICS AND CHEMICAL ENERGETICS

    BRILLIANT PUBLICATION|Exercise (LEVEL-II (HOMEWORK)|39 Videos
BRILLIANT PUBLICATION-STRUCTURE OF ATOMS-LEVEL - II
  1. A plot of the kinetic energy ((1)/(2) mv^(2)) of ejected electrons as ...

    Text Solution

    |

  2. The highest energy in Balmer series, in the emission spectra of hydrog...

    Text Solution

    |

  3. If the electronic configuration of nitrogen had 1s^(7), it would have ...

    Text Solution

    |

  4. An excited He^(+) ion emits photon of wavelength lamda in returning to...

    Text Solution

    |

  5. If the energy of H-atom in the ground state is-E, the velocity of phot...

    Text Solution

    |

  6. The energy of I, II and III energy levels of a certain atom are E, (4E...

    Text Solution

    |

  7. An electron in a hydrogen atom in its ground state absorbs 1.5 times a...

    Text Solution

    |

  8. An alpha-particle having kinetic energy 5 MeV falls on a Cu-foil. The ...

    Text Solution

    |

  9. The energy of separation of an electron in a Hydrogen like atom in exc...

    Text Solution

    |

  10. Photons of frequency, v, fall on metal surface for which the threshold...

    Text Solution

    |

  11. When electron jumps from the fourth orbit to the second orbit in Het i...

    Text Solution

    |

  12. Which of the following graph represents the radial probability functio...

    Text Solution

    |

  13. For an atom or ion having single electron, compare the energies of the...

    Text Solution

    |

  14. Excited hydrogen atom emits light in the ultra violet region at 2.47 x...

    Text Solution

    |

  15. Which of the following statements on quantum numbers is not correct?

    Text Solution

    |

  16. The electrons, identified by quantum numbers 'n' and (i) 'n=4, l=1' (i...

    Text Solution

    |

  17. The kinetic and potential energy (in eV) of an electron present in 3^(...

    Text Solution

    |

  18. The stopping potential of the electrons emitted in a photoelectric exp...

    Text Solution

    |

  19. If the uncertainity in locating the position of a proton (m=1.67xx10^(...

    Text Solution

    |

  20. Consider the ground state of Cu atom (Z = 29). The number of electrons...

    Text Solution

    |