Home
Class 11
CHEMISTRY
The spein multipltcity for the orbital e...

The spein multipltcity for the orbital enryron si ` 2s +1`where (s) is total enrctrons pin. The spin multiplicity for stage (I) , (II) and (III)are respectively
.

A

`1,1,1`

B

`1,2,3`

C

`1,13`

D

`1,3,1`

Text Solution

Verified by Experts

The correct Answer is:
C
For (I) (Ground state )
Total sjpins ` s = + 1/2 - 1/2 =0`
` :.` Spin multiplicity `= ( 2 xx 0) +1=1`
For (II) (singlet excited state )
Total spin ` S= + 1/2 = 1/2 =1`
`:.` Spin multiplicity ` = (2 xx 1) = 1 =3`.
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    P BAHADUR|Exercise Exercise 3B|19 Videos

  • ATOMIC STRUCTURE

    P BAHADUR|Exercise Exercise 4|39 Videos

  • ATOMIC STRUCTURE

    P BAHADUR|Exercise Exercise|19 Videos

  • CHEMICAL BONDING

    P BAHADUR|Exercise Exercise 7|11 Videos

Similar Questions

Explore conceptually related problems

In the figure shows, all the capacitors are initially uncharged. Case I: only switch S_1 is closed Case II: only switch S_2 is closed Case III: both swithces are closed Find the ratio of the total energy stored in the system of capacitors for the cases I, II, and III, respectively.

The sum of spins of all the electron is the total spins(S) and (2S+1) is called spin multiplicity of the electronic configuration. Hund's rule defines the ground state configuration of electrons in degenerate orbitals i.e., orbitals within the same sub-shell which have the same values of n and l, states thta in degenerate orbitals pairing of electrons does not occur unless and until all such orbitals are filled singly with their parallel spin. A spinning electron behaves as though it were a tiny bar magnet with poles lying on the axis of spin. The magnetic moment of any atom, ion or molecule due to spin called spin-only magnetic moment (m_(s)) is given by the formula. mu_(s) = sqrt(n(n+2))B.M where n= number of unpaired electron(s) The spin-multiplicity of Fe^(3+) [Ec =[Ar] 3d^(5)) in its ground state

Spin angular momentum of an electron has no analogue in classical mechanics. Howerver, it turns out that the treatment of spin angular momentum is closely analogous to the treatment of orbital angular momentum Spin angular momentum =sqrt(s(s+1))h Orbital angular momentum =sqrt(l(l+1))h Total spin of ana tom or ion is a multiple of (1)/(2) . Spin multiplicity is a factor to confirm the electronic configuration of an atom or ion. Spin multiplicity =(2sums+1) Q. The orbital angular momentum of a 2p-electron is:

The sum of spins of all the electron is the total spins(S) and (2S+1) is called spin multiplicity of the electronic configuration. Hund's rule defines the ground state configuration of electrons in degenerate orbitals i.e., orbitals within the same sub-shell which have the same values of n and l, states thta in degenerate orbitals pairing of electrons does not occur unless and until all such orbitals are filled singly with their parallel spin. A spinning electron behaves as though it were a tiny bar magnet with poles lying on the axis of spin. The magnetic moment of any atom, ion or molecule due to spin called spin-only magnetic moment (m_(s)) is given by the formula. mu_(s) = sqrt(n(n+2))B.M where n= number of unpaired electron(s) The spin-only magnetic moment of Cr^(3+) ?

Spin angular momentum of an electron has no analogue in classical mechanics. Howerver, it turns out that the treatment of spin angular momentum is closely analogous to the treatment of orbital angular momentum Spin angular momentum =sqrt(s(s+1))h Orbital angular momentum =sqrt(l(l+1))h Total spin of ana tom or ion is a multiple of (1)/(2) . Spin multiplicity is a factor to confirm the electronic configuration of an atom or ion. Spin multiplicity =(2sums+1) Q. In any subshell, the maximum number of electrons having same value of spin quantum numbers is:

Spin angular momentum of an electron has no analogue in classical mechanics. Howerver, it turns out that the treatment of spin angular momentum is closely analogous to the treatment of orbital angular momentum Spin angular momentum =sqrt(s(s+1))h Orbital angular momentum =sqrt(l(l+1))h Total spin of ana tom or ion is a multiple of (1)/(2) . Spin multiplicity is a factor to confirm the electronic configuration of an atom or ion. Spin multiplicity =(2sums+1) Q. Total spin of Mn^(2+)(Z=25) ion will be:

Spin angular momentum of an electron has no analogue in classical mechanics. Howerver, it turns out that the treatment of spin angular momentum is closely analogous to the treatment of orbital angular momentum Spin angular momentum =sqrt(s(s+1))h Orbital angular momentum =sqrt(l(l+1))h Total spin of ana tom or ion is a multiple of (1)/(2) . Spin multiplicity is a factor to confirm the electronic configuration of an atom or ion. Spin multiplicity =(2sums+1) Q. Which of the following electronic configurations have four spin multiplicity?

L = sqrt(l(l+1)) (h)/(2pi) On the other hand, m determines Z-component of orbital angular momentum as L_(z) = m ((h)/(2pi)) Hund's rule states that in degenerate orbitals electron s do not pair up unless and until each such orbital has got an electron with parallel spins. Besides orbital motion, an electron also possess spin-motion. spin may be clockwise and anti-clockwise. Both thes spin motions are called two spin states of electron characterised by spin. s = +(1)/(2) and s =- (1)/(2) , respectively. The orbital angular momentum of electron (l =1) makes an angle of 45^(@) from Z-axis. The L_(z) of electron will be

Two satellites S_(1) and S_(2) resolve round a planet in coplaner circular orbit in the same sense. Their period of revolution are 1 hour and 8 hour respectively. The radius of the orbit of S_(1) is 10^(4) km . When S_(2) is closest to S_(1) , find (a) The speed of S_(2) relative to S_(1) , (b) The angular speed of S_(2) actually observed by an astronaut is S_(1)

P BAHADUR-ATOMIC STRUCTURE-Exercise 3A
  1. Which of the following is correct for the same radius of ion ieach pai...

    Text Solution

    |

  2. IE1 for .1H^2 and IE1 for .1H^1 are related as ?

    Text Solution

    |

  3. The spein multipltcity for the orbital enryron si 2s +1where (s) is t...

    Text Solution

    |

  4. The enrgy level fo 4s-orbital is less than 3d- orbital because :

    Text Solution

    |

  5. The number fo spectiral lines produced according to Bohr's concept whe...

    Text Solution

    |

  6. A s-orbital is symmetricla aout the :

    Text Solution

    |

  7. Which orbital has appearance like a body soother ?

    Text Solution

    |

  8. Degenrate orbitals means :

    Text Solution

    |

  9. Which is correct paramagnetic or der ?

    Text Solution

    |

  10. In ground state fo .(24)Cr :

    Text Solution

    |

  11. The maxium number of electrons in an orbital having same spin quantum ...

    Text Solution

    |

  12. The electronic configuration of .(46)Pd is :

    Text Solution

    |

  13. The pair having identical velue fo e//m:

    Text Solution

    |

  14. For an electron the product of velocity fo electron and pricipa quantu...

    Text Solution

    |

  15. Which of the following corresponds to one node ?

    Text Solution

    |

  16. For a satellite moving in an orbit aroun the earth the ratio of kineti...

    Text Solution

    |

  17. A photosensitve metallic surface has work fuction hv0 If photons of ...

    Text Solution

    |

  18. The work functions for metals A, B and ( C) are presepctively 1. 92 ...

    Text Solution

    |

  19. Carbo , silicon and Germanitum atomshave four valence electrons each ....

    Text Solution

    |

  20. The total enrgy of electron in the firdt state fo H-atom is -3 . 4 eV...

    Text Solution

    |