Home
Class 12
CHEMISTRY
The radius of the second Bohr orbit is...

The radius of the second Bohr orbit is

A

0.053 nm

B

0.106 nm

C

0.212 nm

D

0,0265 nm

Text Solution

Verified by Experts

The correct Answer is:
c

The radius of `n^(th)` Bohr,s orbit,`r_n=0.53xxn^(2)`
The radius of `2^(nd)` Bohr.s orbit,`r_2=0.53xx2^(2)`
`=2.12 A^(@)`
`=0.212nm`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The radius of the Bohr orbit in the ground state of hydrogen atom is 0.5 the radius of the orbit of the electron in the third excited state of He^(+) will be

The ratio of the radius of the first Bohr orbit for the electron orbiting the hydrogen nucleus to that of the electron orbiting the deuterium nucleus (mass nearly twice that of the hydrogen nucleus) is approximately

In a Bohr atom the electron is replaced by a particle of mass 150 times the mass of the electron and the same charge . If a_(0) is the radius of the first Bohr orbit of the orbital atom, then that of the new atom will be

The radius or second stationary orbit in Bohr's atom is R. The radius of the third orbit in the same atom will be

The radius of first Bohr.s orbit for hydrogen is 0.53 Å. The radius of third Bohr.s orbit would be

The radius of first Bohr's orbit for hydrogen is 0.53Å . The radius of third Bohr's orbit would be

The radius of the first electron orbit of a hydrogen atom is 5.3 xx 10^(-11)m . What is the radius of the second orbit ?

if a is the radius of first Bohr orbit in hydrogen atom, the radius of 3^rd orbit is

The energy of second Bohr orbit of hydrogen atom is -328 kJ. mol^(-1) , hence energy of fourth Bohr orbit would be

The energy of second Bohr orbit of hydrogen atom is -328 kJ. mol^(-1) , hence energy of fourth Bohr orbit would be

SIA PUBLICATION-ATOMIC STRUCTURE-MCQ.S
  1. The rule that explain the reason for chromium to have [Ar]3d^(5)4s^(1)...

    Text Solution

    |

  2. The volume in litres of CO2 librated at STP when 10 g of 90% pure lime...

    Text Solution

    |

  3. Ruthford's expirement on scatterinf of alpha-particle showed for the ...

    Text Solution

    |

  4. The radius of the second Bohr orbit is

    Text Solution

    |

  5. The formula of a metal chloride is MCl3 and it contains 20% of the met...

    Text Solution

    |

  6. Which one of the following gases contains the least number of molecule...

    Text Solution

    |

  7. The constancy of e/m ratio for electrons insdpite of variation of gas ...

    Text Solution

    |

  8. The basic assumption of Bohr's model of hydrogen atom is that

    Text Solution

    |

  9. According to Aufbau principle,the sub-shell which is occupied by the e...

    Text Solution

    |

  10. 0.84g of metal carbonate reacts exactly with 40 ml of N//2H2SO4 . The ...

    Text Solution

    |

  11. The number of molecules present in 3.5 g of CO at 0^(@)c and 760 nm pr...

    Text Solution

    |

  12. Which of the gases contains the same number of molecules as that of 16...

    Text Solution

    |

  13. When 4p orbital in any atom is filled completely,the next electron goe...

    Text Solution

    |

  14. Which one of the following series of line is found in the UV region of...

    Text Solution

    |

  15. The energy of the electron in the hydrogen atom is given by the expres...

    Text Solution

    |

  16. One atom of ""19^(39)K""contains

    Text Solution

    |

  17. Whwn the electron in an excited hydrogen atom jumps from an energy lev...

    Text Solution

    |

  18. The number of moles of barium carbonate which contains 1.5 moles of ox...

    Text Solution

    |

  19. The maximum number of electrons that can be accommodated in all the or...

    Text Solution

    |

  20. The magnetic quantum number m for the outermost electron in the Na ato...

    Text Solution

    |