9th Class Science Atoms and Molecules

  • question_answer 5)
    Define the atomic mass unit.

    Answer:

    Atomic mass unit is defined as the mass unit equal to exactly one-twelfth (1/12th) of the mass of one atom of carbon-12. It is denoted by u (unified mass). i.e. 1 u = 1.66 x 10-24 g  


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