Home
Class 11
CHEMISTRY
The atomic nucleus contains (i) proton...

The atomic nucleus contains
(i) protons (ii) neutrons
(iii) quarks (iv) leptons

A

`(i),(ii)`

B

`(i),(ii),(iii),(iv)`

C

`(i),(ii),(iv)`

D

`(i),(ii),(iii)`

Text Solution

Verified by Experts

The correct Answer is:
D
According to the quark theory (postulated by Murray Gell-Mann), all matter consists either of quarks or leptons, which are the only true elementary particles. Protons and neutrons are belived to be made up of various combinations of elementary particles, quarks, which are belived to have fractional charges and other properties such as flavor and color. Electron is a lepton.
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    R SHARMA|Exercise Follow-up Test 2|1 Videos

  • STRUCTURE OF ATOM

    R SHARMA|Exercise Follow-up Test 3|1 Videos

  • STRUCTURE OF ATOM

    R SHARMA|Exercise Follow-up Test 1|1 Videos

  • STATES OF MATTER

    R SHARMA|Exercise ARCHIVES|41 Videos

  • THE P BLOCK ELEMENTS

    R SHARMA|Exercise Archives|40 Videos

Similar Questions

Explore conceptually related problems

An atom contains protons, neutrons and ______

A triton contains (neutron /proton)

The atom of an element X contains 17 protons, 17 electrons and 18 neutrons wheareas the atom of an element Y contains 11 protons, 11 electrons and 12 neutrons. (a) What type of ions will be formed by an atom of element X ? Write the symbol of ion formed. (b) What will be the number of (i) protons (ii) electrons, and (iii) neutrons, in the ion formed form X ? (c ) What type of ion will be formed by an atom of element Y ? Write the symbol of ion formed. (d) What will be the number of (i) protons (ii) electrons, and (iii) neutrons, in the ions formed from Y ? (e ) What is the atomic mass of (i) X, and (ii) Y ? (f) What could the elements X and Y be ?

Which of the following have been discovered by alpha particle scattering experiment? (i) Electron (ii) Proton (iii) Nucleus (iv) Neutron

The nucleus of the atom of an element contains 17 protons and 18 neutrons. Calculate the atomic number and mass number of the element and represent them along with the symbol of the element.

The nucleus of the atom of an element contains 17 protons and 18 neutrons. Calculate the atomic number and mass number of the element and represent them along with the symbol of the element.

The nucleus of an atom of an element contains 11 protons and 12 neutrons . Determine the atomic number and mass number of the element.

R SHARMA-STRUCTURE OF ATOM-Follow-up Test
  1. Many elements have non-intergral atomic masses because (1)the consti...

    Text Solution

    |

  2. The sun of the number of neutrons and protons in the isotope of hydrog...

    Text Solution

    |

  3. The atomic nucleus contains (i) protons (ii) neutrons (iii) quarks...

    Text Solution

    |

  4. Decrease in atomic numebr is not observed during

    Text Solution

    |

  5. Which of the following is incorrect?

    Text Solution

    |

  6. Avogardo's number is the number of atomic mass units in one

    Text Solution

    |

  7. Mass sepctrometers are instruments that measure (i) the charge-to ma...

    Text Solution

    |

  8. A beam of Ne^(+) ions in the mass spectrometer is split intosegments.

    Text Solution

    |

  9. The electromagnetic spectrum consists of a continuous range of wavelen...

    Text Solution

    |

  10. Electromagnetic waves in theregion have a wave length that is approxim...

    Text Solution

    |

  11. Different kinds of electromagnetic radiations are simply electromagnet...

    Text Solution

    |

  12. The intensity of radient enegry, according to the wave theory, is prop...

    Text Solution

    |

  13. Which of the following are not electromagnetic waves? (i) sound wave...

    Text Solution

    |

  14. Each type of electromagnetic radiation is spread over a specific range...

    Text Solution

    |

  15. Which of the electromagnetic waves result from charges within the nucl...

    Text Solution

    |

  16. In 1873, James Maxwell proposed that visible light consists of electro...

    Text Solution

    |

  17. Which of the following is not correct?

    Text Solution

    |

  18. Which of the following is not correct?

    Text Solution

    |

  19. Calculate the wavenumber of yellow radiaiton having wave length 5800Å.

    Text Solution

    |

  20. Each photon of light has a particaular amount (a quantum) of enegry. T...

    Text Solution

    |