Home
Class 11
CHEMISTRY
What is the difference between mass numb...

What is the difference between mass number and atomic mass?

Text Solution

Verified by Experts

Mass number is a whole number because it is the sum of number of protons and number of neutrons whereas atomic mass is fractional because it is the average relative mass of its atoms as compared with mass an atom of `C - 12` isotope taken as 12
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    PRADEEP|Exercise NCERT Questions And Exercises with Answers|67 Videos

  • STRUCTURE OF ATOM

    PRADEEP|Exercise NCERT Exemplar Problems With Answers, Hints and Solution (I. Multiple Choice Questions)|16 Videos

  • STRUCTURE OF ATOM

    PRADEEP|Exercise Test Your Grip (Fill in the Blanks)|24 Videos

  • STATES OF MATTER: SOLID MATTER

    PRADEEP|Exercise COMPETITION FOCUS (ASSERTION-REASON)|17 Videos

  • THERMODYNAMICS

    PRADEEP|Exercise MULTIPLE CHOICE QUESTION ( BASED ON PRACTICAL CHEMISTRY)|3 Videos

Similar Questions

Explore conceptually related problems

Nuclides having the same difference in mass number and atomic number, are known as

What is the difference between Rate law and Law of Mass Action ?

What is the difference between mass and weight of an object ? Will the mass and weight of an object on the earth be the same as their values on Mars ? Why ?

What is the difference between the mass of a molecule and molecular mass ?

What is the difference between inertial mass and gravitational mass of a body?

What is the difference between centre of mass and centre of gravity?

PRADEEP-STRUCTURE OF ATOM-Conceptual Questions
  1. When different gases are taken in the discharge tube, how do the e/m v...

    Text Solution

    |

  2. When alpha-rays hit a thin foil of gold, very few alpha-particles are ...

    Text Solution

    |

  3. What is the difference between mass number and atomic mass?

    Text Solution

    |

  4. Calculate the approximate charge in coulombs and approximate mass in k...

    Text Solution

    |

  5. Give one example of each of the following: (i) Isotope of .(17)^(35)...

    Text Solution

    |

  6. What is the main difference between electromagnetic wave theory and Pl...

    Text Solution

    |

  7. What is difference between a quantum and a photon?

    Text Solution

    |

  8. What do you understand by ground state and excited state of an atom?

    Text Solution

    |

  9. What do you mean by saying that energy of the electron is quantized ?

    Text Solution

    |

  10. What is the number of spectral line in a hydrogen spectrum ?

    Text Solution

    |

  11. How much energy must be supplied to hydrogen atom, to free (remove) th...

    Text Solution

    |

  12. Which transition between Bohr orbits corresponds to third line in the ...

    Text Solution

    |

  13. What are dimensions of Planck's constant. What other physical quantity...

    Text Solution

    |

  14. Which of the following relate to wave nature of light or particle natu...

    Text Solution

    |

  15. What will become to the wavelength a moving particle if its velocity i...

    Text Solution

    |

  16. Two particles A and B are moving with the same velocity but wavelength...

    Text Solution

    |

  17. What is the main difference between wave emitted by a bulb or heater a...

    Text Solution

    |

  18. Why the ball hit with a hockey by a player does not make a wave ?

    Text Solution

    |

  19. An electron beam after hitting a nicket crystal produces a diffraction...

    Text Solution

    |

  20. An electron beam on hitting a ZnS screen produces a scintillation on i...

    Text Solution

    |