Home
Class 11
CHEMISTRY
Which particles are mainly responsible f...

Which particles are mainly responsible for the mass of an atom?

Text Solution

Verified by Experts

The correct Answer is:
Proton and neutron.
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    ICSE|Exercise Essay (Long Answer) Type Questions|15 Videos

  • STRUCTURE OF ATOM

    ICSE|Exercise Objective (MCQ) TYPE Questions|67 Videos

  • STRUCTURE OF ATOM

    ICSE|Exercise Very Short Answer Type Questions|30 Videos

  • STATES OF MATTER : GASES AND LIQUIDS

    ICSE|Exercise NCERT TEXT-BOOK EXERCISES (With Hints and Solutions)|23 Videos

  • THE s - BLOCK ELEMENTS

    ICSE|Exercise NCERT TEXT-BOOK. EXERCISES (WITH HINTS AND SOLUTIONS)|55 Videos

Similar Questions

Explore conceptually related problems

GEAC is mainly responsible for

Ethylene is mainly responsible for

Vasporessin in mainly responsible for

Which cells are mainly responsible for humoral immunity ?

Which particles are responsible for current in conductors?

mutations are mainly responsible for controlling :

Which hormone is mainly responsible for ovulation ?

Rough E.R. mainly responsible for :-

Name the alga which is mainly responsible for the red tides in many sea coasts.

Which one is mainly responsible for absorption of Na^(+) in the PCT part of nephron?

ICSE-STRUCTURE OF ATOM-Short Answer Type Questions
  1. Discuss the effect of alpha-, beta- and gamma-rays on a photographic p...

    Text Solution

    |

  2. What is the plum pudding model of the atom?

    Text Solution

    |

  3. Which particles are mainly responsible for the mass of an atom?

    Text Solution

    |

  4. Define atomic number and mass number of an atom.

    Text Solution

    |

  5. Define isotopes and isobars.

    Text Solution

    |

  6. Define wave number. How is it related to frequency and wavelength?

    Text Solution

    |

  7. Which of the following are not electromagnetic waves? (i) alpha-rays...

    Text Solution

    |

  8. What is photoelectric effect? Mention the Einstein's photoelectric equ...

    Text Solution

    |

  9. Why light is sald to possess a dual nature?

    Text Solution

    |

  10. What do you understand by the term spectrum ?

    Text Solution

    |

  11. Mention the main points of difference between the emission and absorpt...

    Text Solution

    |

  12. How many series are found in the spectrum of atomic hydrogen? Mention ...

    Text Solution

    |

  13. State one major drawback of Rutherford's model.

    Text Solution

    |

  14. Explain what is meant by quantisation of energy.

    Text Solution

    |

  15. Electronic energy is negative because:

    Text Solution

    |

  16. State the expression for Heisenberg.s uncertainty principle.

    Text Solution

    |

  17. What do you understand by an orbital? How is it different from an orbi...

    Text Solution

    |

  18. How many and which quantum numbers are required to completely define :...

    Text Solution

    |

  19. Draw the shapes of 1s, 2s, 2px, 2py, and 2pz, orbitals.

    Text Solution

    |

  20. Give a brief account of Hund's rule of maximum multiplicity.

    Text Solution

    |