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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
Fill in the blank
The ..........................of an atom is very hard and dense.
FILL IN THE BLANK
Nuclear energy can be used to make ..........................
Tick the most appropriate answer
Which one of the following scientists put forward the theory regarding the extra-nuclear structure of the atom?
- James Chadwick
- John Dalton
- Rutherford
- Niels Bohr
TRUE \ FALSE
Uranium-235 and uranium-238 both undergo nuclear fission.
WRITE SHORT ANSWER
What is the central part of an atom known as?
ANSWER IN DETAIL
What are the various components of a nuclear power plant?
ANSWER IN DETAIL
How are radioactive radiations useful in medicines ?
Which metal did rutherford select for his `alpha` particle scattering experiment and why?
Choose the correct option
Rutherford's alpha-particle scattering experiment discovered
What is meant by the term nucleus
