9th Standard English Medium Science Subject Atomic Structure Book Back 3 Mark Questions with Solution Part - I

9th Standard

    Reg.No. :
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Science

Time : 00:30:00 Hrs
Total Marks : 15
    5 x 3 = 15
  1. An atom has 11 protons, 11 electrons and 12 neutrons. What is the atomic number and the name of the element?

  2. State the law of multiple proportions

  3. List the uses of isotopes?

  4. What is isotone? Give an example.

  5. Draw the structure of oxygen and sulphur atoms.

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