Home
Class 11
CHEMISTRY
The number of netrons in the element Be ...

The number of netrons in the element Be is

A

4

B

5

C

9

D

13

Text Solution

Verified by Experts

The correct Answer is:
B

No. of neutrons = 9 - 4 = 5.
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    DINESH PUBLICATION|Exercise Selected Straight Objective Type MCQs|70 Videos
  • ATOMIC STRUCTURE

    DINESH PUBLICATION|Exercise Compre.|17 Videos
  • ATOMIC STRUCTURE

    DINESH PUBLICATION|Exercise Ultimate Preparatory Package|15 Videos
  • APPENDIX

    DINESH PUBLICATION|Exercise Completion Reactions|15 Videos
  • BIOMOLECULES

    DINESH PUBLICATION|Exercise Reason|1 Videos

Similar Questions

Explore conceptually related problems

The number of synthetic elements are

The atomic number and the mass number of an element M are 12 and 24 respectively . Calculate the number of neutrons in an atom of the element.

Atomic number of an element is 26. the element shows

An element has atomic number 13 and an atomic mass of 27. The number of electrons in each atom of this element is ____________ and the number of neutrons is _________

The group numbers of transition elements

DINESH PUBLICATION-ATOMIC STRUCTURE-Revision Questions
  1. The electronic configuration of 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(2) cor...

    Text Solution

    |

  2. The maximum number of electrons in p-orbital with n = 6, m = 0 is

    Text Solution

    |

  3. The number of netrons in the element Be is

    Text Solution

    |

  4. When the azimuthal quantum number l = 1, the shape of the orbital will...

    Text Solution

    |

  5. The spectrum of He is expected to be similar to that of

    Text Solution

    |

  6. Sodium chloride imparts a yellow colour to the Bunsen flame .This ca...

    Text Solution

    |

  7. The exact path of electron 2p orbital cannot be determined the above s...

    Text Solution

    |

  8. For the energy levels in an atom , which one of the following statem...

    Text Solution

    |

  9. Subsidiary quantum number specifies

    Text Solution

    |

  10. As we move away from nucleus, the energy of orbit

    Text Solution

    |

  11. The spectrum of He is expected to be similar to that of

    Text Solution

    |

  12. The maximum number of electrons in a subshell is given by the expressi...

    Text Solution

    |

  13. The atomic numbers of Ni and Cu are 28 and 29 respectively. The electr...

    Text Solution

    |

  14. The correct set of quantum numbers for the unpaired electron of chlori...

    Text Solution

    |

  15. Which of the following sets of quantum numbers is not possible?

    Text Solution

    |

  16. The number of spherical nodes in 3p orbitals are

    Text Solution

    |

  17. No two electrons in atom can have

    Text Solution

    |

  18. Number of neutrons in heavy hydrogen atom is

    Text Solution

    |

  19. If r is radius of first orbit , the radius of nth orbit of the H atom ...

    Text Solution

    |

  20. The energy of a hydrogen atom in its ground state is -13.6 eV. The ene...

    Text Solution

    |