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  5. Structure of the Atom

9th Class Science Structure of the Atom

  • question_answer 13)
    Atomic numbers of oxygen and sulphur are 8 and 16 respectively. Oxygen atom has 6 neutrons and sulphur atom has 16 neutrons. Find out the mass number of oxygen and sulphur atom.

    Answer:

    Mass number of oxygen atom = No. of protons + No. of neutrons                                                = 8+8=16   Mass number of sulphur = No. of protons + No. of neutron                                        = 16+16=32                                  


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