Home
Class 11
CHEMISTRY
If the atomic weight of an element is 23...

If the atomic weight of an element is `23` times that of the lightest element and it has `11` protons, then it contains.

A

11 protons, 23 neutrons, 11 electrons

B

11 protons, 11 neutrons, 11 electrons

C

11 protons, 12 neutrons, 11 electrons

D

11 protons, 11 neutrons, 23 electrons

Text Solution

Verified by Experts

The correct Answer is:
C
Mass no. `~~` At. Wt.
Mass no. = no. of protons + no. of neutrons
At. No. = no. of protons.
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Atomic Models and Planck.s Quantum Theory) |75 Videos

  • STRUCTURE OF ATOM

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Dual Nature of Electron) |16 Videos

  • STRUCTURE OF ATOM

    ERRORLESS|Exercise Assertion & Reason|16 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

____ is the lightest element known.

The lightest element in the periodic table is

The lightest transition element is

The atomic weight of an element is 52 and its atomic number is 24. The number of electrons, protons and neutrons in an atom of this element will be respectively

Mass of 10 atoms of an element is 24xx10^(-23) gm, then atomic mass of that element is:

ERRORLESS-STRUCTURE OF ATOM-NCERT BASED QUESTIONS (Atomic Number, Mass Number, Atomic Species)
  1. Atomic number of an element represents:

    Text Solution

    |

  2. An atom has the electronic configuration of 1s^2, 2s^2 2p^6, 3s^2 3p^6...

    Text Solution

    |

  3. If the atomic weight of an element is 23 times that of the lightest el...

    Text Solution

    |

  4. The number of electrons in the nucleus of C^(12) is

    Text Solution

    |

  5. The number of neutrons in oxygen-18 are

    Text Solution

    |

  6. Nitrogen has an atomic number of 7 and oxygen has an atomic number of ...

    Text Solution

    |

  7. The nitride ion in lithium nitride is composed of

    Text Solution

    |

  8. The atomic number of an element is 17. The number of orbitals containi...

    Text Solution

    |

  9. The nucleus of tritium contains

    Text Solution

    |

  10. The atomic number of an element is 35. What is the toal number of elec...

    Text Solution

    |

  11. Atom consist of electrons , protons and neutrons . If the mass attribu...

    Text Solution

    |

  12. The charge of an electron is -1.6 xx10^(-19) C. The value of free char...

    Text Solution

    |

  13. Nucleus of an element contains 9 protons Its valency would be :

    Text Solution

    |

  14. The total number of neutrons in dipositive zinc ions with mass number ...

    Text Solution

    |

  15. The nucleus of an atom is spherical. The relation between radius of ...

    Text Solution

    |

  16. Chlorine exists in two isotopic forms Cl-37 and Cl-35 but its atomic m...

    Text Solution

    |

  17. An ion has a charge of -1 . It has eighteen electrons and twenty neutr...

    Text Solution

    |

  18. CO has same electrons as of the ion that is isoelectronic with CO is.

    Text Solution

    |

  19. Which one of the following constitutes a group of the isoelectronic sp...

    Text Solution

    |

  20. In which one of the following , the number of protons is greater than ...

    Text Solution

    |