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Why proton is regarded as a subatomic pa...

Why proton is regarded as a subatomic particle?

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ICSE-STRUCTURE OF ATOM-Short Answer Type Questions
  1. Determine the mass of an electron if for an electron e/m=1.759 xx 10^(...

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  2. What changes in a discharge tube used for producing cathode rays are r...

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  3. Why proton is regarded as a subatomic particle?

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  4. What happens when the radiations obtained from a radio active substanc...

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  5. Discuss the effect of alpha-, beta- and gamma-rays on a photographic p...

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  6. What is the plum pudding model of the atom?

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  7. Which particles are mainly responsible for the mass of an atom?

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  8. Define atomic number and mass number of an atom.

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  9. Define isotopes and isobars.

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  10. Define wave number. How is it related to frequency and wavelength?

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  11. Which of the following are not electromagnetic waves? (i) alpha-rays...

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  12. What is photoelectric effect? Mention the Einstein's photoelectric equ...

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  13. Why light is sald to possess a dual nature?

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  14. What do you understand by the term spectrum ?

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  15. Mention the main points of difference between the emission and absorpt...

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  16. How many series are found in the spectrum of atomic hydrogen? Mention ...

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  17. State one major drawback of Rutherford's model.

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  18. Explain what is meant by quantisation of energy.

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  19. Electronic energy is negative because:

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  20. State the expression for Heisenberg.s uncertainty principle.

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