Home
Class 12
CHEMISTRY
When an electron in an excited state of ...

When an electron in an excited state of Mo atom falls from L to K shell an x-ray is emitted. These x-rays are diffracted at an angle of `7.75^(@)` by planes with a separationof `2.64A^(@)`.What is the difference in energy between K-shell and L-shell in Mo. Assuming a first order dirffraction ? `(sin 7.75^(@)=0.1349)`

A

`2.791xx10^(18)J`

B

`2.791xx10^(15)J`

C

`4.936xx10^(-15)J`

D

`4.936xx10^(-18)J`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SOLID STATE

    BRILLIANT PUBLICATION|Exercise QUESTION (LEVEL -II) (Assertion-Reason)|4 Videos

  • SOLID STATE

    BRILLIANT PUBLICATION|Exercise QUESTION|14 Videos

  • SOLID STATE

    BRILLIANT PUBLICATION|Exercise LEVEL-3 (Linked Comprehension Type)|10 Videos

  • REDOX REACTION & ELECTROCHEMISTRY

    BRILLIANT PUBLICATION|Exercise QUESTION (ELECTROCHEMISTRY) (LEVEL -II) (ASSERTION-REASON)|3 Videos

  • SOLUTIONS

    BRILLIANT PUBLICATION|Exercise Level-III (Linked Comprehension Type)|12 Videos

Similar Questions

Explore conceptually related problems

The energy of the electron in the 'n^(th) ' orbit of hydrogen atom is given as: 'E_n=(-1311.8)/n^2 k J m o l^(-1)' What is the energy emitted per atom when an electron jumps from thịrd energy level to second energy level?

Energy required for excitation of electron in 1 mole H atom from ground state to 3^(rd) excited state is 2.67 times (lesser than) dissociation energy per mole of H_(2(g)) . Calculate the amount of energy needed to excite each H atom of H_(2(g)) confined in 1 L at 27^(@)C and 1 bar pressure. (R=0.083 bar litre K^(-1)" mol"^(-1), R_(B)=1.1xx10^(-7) m^(-1) ).

What is the energy in joules required to shift the electron of the hydrogen atom from the first Bohr orbit to the fifth Bohr orbit and what is the wavelength of the light emitted when the electron returns to the ground state? The ground state electron energy is -2.18xx10^(-11) ergs. (1erg=10^(-7)J)

Based on his alpha - ray scattering experiment, Rutherford proposed the nuclear model of an atom. The threshold frequency v0 for a metal is 6.2xx10^14s^(-1) . Calculate the K.E. emitted for an electron when the radiation of frequency v=8.7xx10^14s^(-1) strikes the metal.

Based on his alpha -ray scattering experiment, Rutherford proposed the nuclear model of an atom. The threshold frequency gamma_(0) for a metal is 6.2 xx10^3 s^(-1) . Calculate the K. E. emitted of an electron when the radiation f_0 frequncy v = 8.7 xx 10^(14) s^(-1) strikes the metal.

BRILLIANT PUBLICATION-SOLID STATE-QUESTION (LEVEL -II)
  1. Density of solid Argon at 40 K is1.65g/mL. If the radius of Argon atom...

    Text Solution

    |

  2. How many unit cells are present in a cube shaped ideal crystal of NaCl...

    Text Solution

    |

  3. The distance between an octahedral and tetrahedral void in fcc lattie ...

    Text Solution

    |

  4. If the unit cell of a material has cubic close packed array of oxygen ...

    Text Solution

    |

  5. Each rubidium halide crystallizing in the NaCl type lattice has a unit...

    Text Solution

    |

  6. An element crystallises in fcc lattice having edge length 400 pm. What...

    Text Solution

    |

  7. A compound A^(+)B^(-) has rock salt type structure. The formula mass o...

    Text Solution

    |

  8. KCl crystalizes in the same type of lattice as does NaCl and CsF in th...

    Text Solution

    |

  9. In diamond, carbon atoms occupy fcc lattice points as well as alternat...

    Text Solution

    |

  10. Tl Al (SO(4))(2).xH(2)O is bcc with a=1.22nm. If the density of the so...

    Text Solution

    |

  11. Which of the following statements is incorrect?

    Text Solution

    |

  12. Which of the following statements are correct in contect of point defe...

    Text Solution

    |

  13. Why is zinc oxide white at low temperature and yellow at high tempera...

    Text Solution

    |

  14. A ferrimagnetic substance among the following is

    Text Solution

    |

  15. A metal crystallises into a lattice containing a sequence of layers of...

    Text Solution

    |

  16. Analysis shows that nickel oxide has the formula 'Ni(0.98) , O(1.00)'...

    Text Solution

    |

  17. if AgCl is dopped with 0.001 mol percent of CdCl(2) the number of cati...

    Text Solution

    |

  18. When an electron in an excited state of Mo atom falls from L to K shel...

    Text Solution

    |

  19. Calcium crystallises in fcc lattice with edge length 0.5 nm. What is t...

    Text Solution

    |

  20. KCl crystalizes in NaCl structure if (gamma(Na^(+)))/(gamma(Cl^(-)))=0...

    Text Solution

    |