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प्रश्न
Explain in brief the experimental proof which led to the discovery of –
Atomic nucleus
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उत्तर
Discovery of Atomic Nucleus: Lord Rutherford in 1911 directed alpha particles (42He) towards gold foil. The deflection of the alpha particles was observed and concluded that there was a nucleus at the centre of atom which was positively charged dense very small space (solid) called the nucleus.
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संबंधित प्रश्न
Give the following a suitable word/phrase.
The number of protons present in the nucleus of an atom.
How does the existence of isotopes contradict Dalton’s atomic theory?
FILL IN THE BLANK
Amount of energy stored inside the ..................... is known as nuclear energy.
Tick the most appropriate answer.
Which of the following is used as a coolant in nuclear reactor?
- liquid sodium
- liquid nitrogen
- cadmium steel rods
- plutonium
TRUE \ FALSE
Uranium-235 and uranium-238 both undergo nuclear fission.
ANSWER IN DETAIL
What are the various components of a nuclear power plant?
State Dalton's atomic theory.
Which part of atom was discovered by Rutherford?
Which metal did rutherford select for his `alpha` particle scattering experiment and why?
Choose the correct option
Rutherford's alpha-particle scattering experiment discovered
