Home
Class 11
CHEMISTRY
The most probable radius (in pm) for fin...

The most probable radius (in pm) for finding the electron in `He^(+)` is

A

0

B

52.9

C

26.5

D

105.8

Text Solution

Verified by Experts

The correct Answer is:
C
Most probable radius = `a_(0)//Z`
where, `a_(0)=52.9`pm. For helium ion, Z = 2.
`r_(mp)=52.9/2=26.45`pm.
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    ERRORLESS|Exercise Assertion & Reason|16 Videos

  • STRUCTURE OF ATOM

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Quantum Number, Electronic Configuration and Shape of Orbitals) |95 Videos

  • STATES OF MATTER

    ERRORLESS|Exercise ASSERTION AND REASON|11 Videos

  • THE P-BLOCK ELEMENTS (BORON AND CARBON FAMILY)

    ERRORLESS|Exercise Assertion & Reason|10 Videos

Similar Questions

Explore conceptually related problems

Assertion : The energy of an electron is mainly determined by principal quantum number. Reason : The principal quantum number is the measure of the most probable distance of finding the electron around the nucleus.

The cation energy of an electron is largely determined by its principal quantum number. The principal quantum number n is a measure of the most probable distance of finding atomic the electron around the nucleus.

The probability of finding the electron in the orbital is

The probability of finding electron in d_(xy) orbital is :

ERRORLESS-STRUCTURE OF ATOM-PAST YEARS QUESTIONS
  1. The isoelectronic pair is

    Text Solution

    |

  2. Select correct statement (s)

    Text Solution

    |

  3. The most probable radius (in pm) for finding the electron in He^(+) is

    Text Solution

    |

  4. According to Bohr theory, which of the following transition in hydroge...

    Text Solution

    |

  5. Which of the following is not a characteristic of planck's quantum th...

    Text Solution

    |

  6. The spectrum of He is expected to be similar to.

    Text Solution

    |

  7. An electronic transition from 1s orbital of an atom causes

    Text Solution

    |

  8. If change in energy (DeltaE)=3xx10^(-8) J, h=6.64xx10^(-34) J-s and c=...

    Text Solution

    |

  9. The total number of atomic orbitals in fourth energy level of an atom ...

    Text Solution

    |

  10. In Bohr 's model of hydrogen when an electron jumps from n=1 to n=3 ho...

    Text Solution

    |

  11. Spectrum of Li^(2+) is similar to that of

    Text Solution

    |

  12. The frequency of radiation emiited when the electron falls n =...

    Text Solution

    |

  13. Calculate the energy in joule corresponding to light of wavelength 45 ...

    Text Solution

    |

  14. The value of Planck's constant is 6.63 xx 10^(-34)Js. The velocity of ...

    Text Solution

    |

  15. Which of the following series of transitions in the spectrum of hydrog...

    Text Solution

    |

  16. Which experimental observation correctly account for the phenomenon ?

    Text Solution

    |

  17. The de-Broglie wavelength associated with a particle of mass 10^-6 kg ...

    Text Solution

    |

  18. The de Broglie wavelength associated with a ball of mass 1kg having ki...

    Text Solution

    |

  19. A cricket ball of 0.5 kg is moving with a velocity of 100ms^(-1). The...

    Text Solution

    |

  20. The position of both an electron and a helium atom is known within 1.0...

    Text Solution

    |