Home
Class 12
CHEMISTRY
What is Hund's rule ?...

What is Hund's rule ?

Text Solution

Verified by Experts

Hund 's rule : "Pairing up of electrons takes place olny when all the available degenerate orbitals in a given sub-shell are filled with on electron each . "
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    VGS PUBLICATION-BRILLIANT|Exercise SHORT ANSWER QUESTIONS|18 Videos
  • ATOMIC STRUCTURE

    VGS PUBLICATION-BRILLIANT|Exercise LONG ANSWER QUESTIONS|15 Videos
  • AP MARCH-2018 I.P.E. PAPER

    VGS PUBLICATION-BRILLIANT|Exercise SECTION-C|5 Videos
  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    VGS PUBLICATION-BRILLIANT|Exercise LONG ANSWER QUESTIONS|9 Videos

Similar Questions

Explore conceptually related problems

For Manganese atom, assuming that Hund's rule is to valid for l=2 subshell predict the unpaired electrons and elctron pairs in that subshell of atom

Explain Hund's rule with an example .

State Hund's rule and Aufbau principle.

State and explain Hunds's rule of maximum multiplicity.

What is Octet rule ? Briefly explain its significance and limitations.

Which of the following electronic configuration represents the violation of both Aufbaur principle and Hund's rule ?

What is octet rule ?

What is octet rule? How do you appreciate role of the 'octet rule' in explaining the chemical properties of elements ?

Electronic configuration of multielectron atoms can be written by the use of four quantum numbers and also by following certain principles. Pauli's exclusio principle suggests that maximum capacity of an atomic orbital is two. Auf bau principle suggests that the lower energy orbitals are filled first and hence stability can be attained. Hunds rule of maximum multiplicity suggests that pairing occurs with one electron. The arrangement of electrons in the space around the nucleus can be understood only after writing the electronic configuration. Thus writing electronic configuration is more important in the structure of an atom. Applying Hunds rule of maximum multiplicity, the maximum number of electrons that can posses spin quantum number +1/2 in 4p orbitals is

The cost of one bag is ₹90. What is the rule of ‘m’ bags?

VGS PUBLICATION-BRILLIANT-ATOMIC STRUCTURE-ADDITIONAL QUESTIONS & ANSWERS
  1. What is Hund's rule ?

    Text Solution

    |

  2. Calculate the number of protons , neutrons and electrons in .(35)^(80)...

    Text Solution

    |

  3. The number of electrons , protons and neutrons in a species are equal ...

    Text Solution

    |

  4. The Vividh Bharati station of All India Radio , Delhi , broadcasts on ...

    Text Solution

    |

  5. The wavelength range of the visible spectrum extends from violet (400 ...

    Text Solution

    |

  6. Calculate wave number

    Text Solution

    |

  7. Calculate frequency of yellow radiation having wavelength 5800 Å .

    Text Solution

    |

  8. Calculate energy of one mole of photons of radiation whose frequency ...

    Text Solution

    |

  9. A 100 watt bulb emits monochromatic light of wavelength 400 nm . Calcu...

    Text Solution

    |

  10. When electromagnetic radiations of wave length 300nm falls on the surf...

    Text Solution

    |

  11. The threshold frequency v(0) for a metal is 7.0xx10^(14)s^(-1) . C...

    Text Solution

    |

  12. What are the frequency and wavelength of a photon emitted during a tra...

    Text Solution

    |

  13. Calculate the energy associated with the first orbit of He^(+) . What ...

    Text Solution

    |

  14. What will be the wavelength of a ball of mass 0.1 kg moving with a vel...

    Text Solution

    |

  15. The mass of an electron is 9.1xx10^(-31)kg . If its K.E . Is 3.0xx10^...

    Text Solution

    |

  16. Calculate the mass of a photon with wavelength 3.6 Å.

    Text Solution

    |

  17. A microscope using suitable photons is employed to locate an electron ...

    Text Solution

    |

  18. A golf ball has a mass of 40g , and a speed of 45m//s . If the speed c...

    Text Solution

    |

  19. What is the total number of orbitals associated with the principal qua...

    Text Solution

    |

  20. Using s, p, d , f notations , describe the orbital with the following ...

    Text Solution

    |

  21. Using s, p, d , f notations , describel the orbital with the following...

    Text Solution

    |