Atomic Structure Two Marks Questions

7th Standard EM

    Reg.No. :
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Science

Time : 00:45:00 Hrs
Total Marks : 20
    10 x 2 = 20
  1. Define an atom.

  2. Name the sub-atomic particles.

  3. What is atomic number?

  4. What is the characteristics of proton?

  5. Why neutrons called neutral particles?

  6. What is atomic number?

  7. What is a neutron?

  8. What are valence electrons?

  9. What is an electron?

  10. What is isotone?

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