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प्रश्न
What are the two main parts of which an atom is made of?
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उत्तर
- The centrally located nucleus
- The outer circular orbits.
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संबंधित प्रश्न
Multiple Choice Questions
The outermost shell of an atom is known as
Mention briefly the salient features of Dalton’s atomic theory (five points)
What are the observations of the experiment done by Rutherford in order to determine the structure of an atom?
Explain the rule with example according to which electrons are filled in various energy levels
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
TRUE \ FALSE
Electrons are present in the nucleus.
Compare an electron and a proton in respect of mass and charge.
State the location of electrons, protons and neutrons in an atom.
With reference to the discovery of the structure of an atom, explain in brief – William Crookes experiment for the discovery of cathode rays, followed by – J.J. Thomsons experiment pertaining to the constituents of the cathode rays. State which sub-atomic particle was discovered from his experiment.
Explain in brief – Goldstein’s experiment which led to the discovery of the proton.
