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प्रश्न
Write true or false for the following statement
The central pad of the atom is called nucleus.
विकल्प
True
False
उत्तर
True
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संबंधित प्रश्न
What are the observations of the experiment done by Rutherford in order to determine the structure of an atom?
Tick the most appropriate answer
β-particles are actually a stream of
- protons
- electrons
- neutrons
- none of these
WRITE SHORT ANSWER
Describe a discharge tube.
WRITE SHORT ANSWER
Name the isotopes of hydrogen.
Why is an atom neutral inspite of the presence of charged particles in it?
Name the sub-atomic particle whose charge is 0.
Define the term Mass number.
Define the term Nucleons.
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.
Write down the names of the particles represented by the following symbols and explain the meaning of superscript and subscript numbers attached.
`""_1"H"^1`, `""_0"n"^1`,`""_(-1)"e"^0`