Home
Class 11
CHEMISTRY
The quantum number of four electrons are...

The quantum number of four electrons are given below:
I. `n=4,l=2,m_l=-2,m_s=-1/2` II. `n=3,l=2,m_l=1,m_s=+1/2`
`III. n = 4 , l =1 ,m _l=0 ,m_s=+1/2`
IV. `n=3,l=1,m_l=1,m_s=-1/2`
The correct order of their increasing energies will be

A

IV lt III lt II lt I

B

I lt II lt III lt IV

C

IV lt II lt III lt I

D

I lt III lt II lt IV

Text Solution

Verified by Experts

The correct Answer is:
C
`I(4d), II(3d), III(4p) (IV) (3p)`
Order of energies is
`IV (3p) < II (3d) < III (4p) < I(4d)`
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    MODERN PUBLICATION|Exercise COMPETITION FILE ,OBJECTIVE TYPE QUESTIONS (C. MULTIPLE CHOICE QUESTIONS)|8 Videos

  • STRUCTURE OF ATOM

    MODERN PUBLICATION|Exercise COMPETITION FILE ,OBJECTIVE TYPE QUESTIONS (D. MULTIPLE CHOICE QUESTIONS)|16 Videos

  • STRUCTURE OF ATOM

    MODERN PUBLICATION|Exercise COMPETITION FILE ,OBJECTIVE TYPE QUESTIONS (A. MULTIPLE CHOICE QUESTIONS)|46 Videos

  • STATES OF MATTER : GASES AND LIQUIDS

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|13 Videos

  • THERMODYNAMICS

    MODERN PUBLICATION|Exercise Unit Practice Test|12 Videos

Similar Questions

Explore conceptually related problems

The quantum numbers for the outer electrons of an atom are given by n = 2, l = 0, m = 0, s = +1//2

Which of the following sets of quantum numbers represents the highest energy of an electron? I n=5,l=0,m=0,s=+1/2 II n=6,l=2,m=1,s=+1/2 III n=5,l=1,m=1,s=-1/2 IV n=4,l=1,m=0,s=-1/2

The quantum number of electrons are given below: Arrange then in order of increasing energies a. n= 4,l= 2,m_(1)= -2, m_(s)= -(1)/(2) b. n= 3,l= 2,m_(1) = 1, m_(s)= +(1)/(2) c. n= 4,l= 1,m_(1) = 0, m_(s)= +(1)/(2) e.n= 3,l= 2,m_(1)= -2, m_(s)= +(1)/(2) f. n= 4,l= 1,m_(1) = +1, m_(s)= +(1)/(2)

From the following sets of quantum numbers , state which are possible ? (i) n=0,l=0,m_(l)=1,m_(s)= +1//2 (ii) n=2,l=1,m_(l)=0,m_(s) = -1//2 (iii) n=2, l=0,m_(1)=3,m_(s) = +1//2 (iv) n=3,l=1,m_(l)=0,m_(s) = +1//2

4) Which of the following set of quantum number is not possible? (A) "n=3,l=2,m=-1, s=-1/2 (B) "n=4,l=2,m=-2, s=+1/2 (C) "n=3,l=1,m=2, s=-1/2 (D) "n=4,l=1,m=1, s=+1/2

The set of Quantum numbers that is not possible for a d-electron (A) n=3, l=2, m=0, s=+1/2 (B) n=2, l=2, m=-2, s=+1/2 (C) n=4, l=2;m=+2, s=+1/2 (D) n=4, l=2, m=-1, s=-1/2

Which set of quantum number is not consistent with the quantum mechanical theory (A) n=2,l=1,m=1,s=1/2 (B) n=4,l=3,m=2,s=-1/2 (C) n=3,l=2,m=3,s=+1/2 (D) n=4,l=3,m=3,s=+1/2

The quantum numbers of six electrons are given below. Arrange them in order of increasing energies. If any of these combination(s) has/have the same energy lists: 1. n=4 , l=2 , m_(i) =-2, m_(s) =-1//2 2. n=3 , l=2 , m_(l) =1 , m_(s) =+1//2 3. n=4 , l=2 ,m_(l)=-2, m_(s) =-1//2 4. n=3 , l= 2, m_(i) =-1 , m_(s) = +1//2 5. n=3 , l=1 , m_(l) =-1 , m_(s) = +1//2 6. n=4 , l= 1 , m_(l) =0 , m_(s) =+1//2

MODERN PUBLICATION-STRUCTURE OF ATOM-COMPETITION FILE ,OBJECTIVE TYPE QUESTIONS (B. MULTIPLE CHOICE QUESTIONS)
  1. Which of the following set of quantum numbers is not possible ?

    Text Solution

    |

  2. The number of unpaired electrons in a nickel atom (ground state) are (...

    Text Solution

    |

  3. With respect to atomic spectrum, each line in the Lyman series is due ...

    Text Solution

    |

  4. The orbital nearest to the nucleus is

    Text Solution

    |

  5. what is the work fuction of the metal if the light of wavelength 4...

    Text Solution

    |

  6. Two particles A and B are in motion. If the wavelength associated with...

    Text Solution

    |

  7. Maximum number of photons emitted by a bulb capable of producing monoc...

    Text Solution

    |

  8. what is the work fuction of the metal if the light of wavelength 4...

    Text Solution

    |

  9. The 71^(st) electron of an element X with an atomic number of 71 enter...

    Text Solution

    |

  10. The ratio of te shortest wavelength of two spectral series of hydrogen...

    Text Solution

    |

  11. In which of the following energy of 2s orbital minium

    Text Solution

    |

  12. The quantum number of four electrons are given below: I. n=4,l=2,ml=...

    Text Solution

    |

  13. What is the ratio of Deltav==v("max")-v("min") for spectral lines corr...

    Text Solution

    |

  14. The de Broglie wavelenght (lambda) associated with a photoelectron var...

    Text Solution

    |

  15. For emission line of atomic hydrogen from n(i)=8 to n(f)=n, the plot o...

    Text Solution

    |

  16. Which of the graphs shown below does not represent the relationship be...

    Text Solution

    |

  17. The radius of which of the following orbit is same as that of the firs...

    Text Solution

    |

  18. The numbers of radial nodes of 3s and 2p orbitals are respectively:

    Text Solution

    |

  19. The kinetic energy of an electron in the second Bohr orbit of a hydrog...

    Text Solution

    |

  20. P is the probability of finding the Is electron of hydrogen atom in a ...

    Text Solution

    |