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प्रश्न
Give the evidence for the existence of nucleus in an atom.
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उत्तर
The evidence for the existence of a nucleus in an atom comes from these observations in Rutherford's experiment:
(1) Few of the rays get deviated from their path.
(2) One out of 12000 rays return on their path
From these two observations, the following conclusions can be drawn that support the existence of a nucleus in an atom: -
(1) Deviation shows the presence of some positive particle.
(2) The returning back of the ray on its own path shows, there is something which is solid in nature and its number (i.e 1/12000th ray) shows the particle is very small in size.
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संबंधित प्रश्न
State whether the following statement is true or false :
Thomson proposed that the nucleus of an atom contains protons and neutrons.
Which part of an atom was discovered by Rutherford's alpha particle scattering experiment?
Describe the Rutherford's model of an atom. State one drawback of Rutherford's model of the atom.
How was it shown that atom has empty space?
Why did Rutherford select a gold foil in his α–ray scattering experiment?
Rutherford’s α-particle scattering experiment led to the discovery of the ———
In what way is the Rutherford’s atomic model different from that of Thomson’s atomic model?
In Rutherford’s experiment, the bouncing of alpha particles suggests that the nucleus of an atom is negatively charged.
Rutherford’s model of an atom has a very small ______ at the center.
In Geiger - Marsden scattering experiment, the trajectory traced by an α-particle depends on ______.
