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प्रश्न
Give the evidence for the existence of nucleus in an atom.
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
Which part of an atom was discovered by Rutherford's alpha particle scattering experiment?
(a) What is the nucleus of an atom and what is the nature of charge on it?
(b) Name the scientist who discovered the nucleus of atom.
Name the particles used by Rutherford in his experiment on the discovery of nucleus. Also state the charge on these particles.
How was it shown that atom has empty space?
Which of the following statements about Rutherford’s model of atom are correct?
(i) considered the nucleus as positively charged
(ii) established that the α–particles are four times as heavy as a hydrogen atom
(iii) can be compared to solar system
(iv) was in agreement with Thomson’s model
Enlist the conclusions drawn by Rutherford from his α-ray scattering experiment.
Proton was discovered by ______.
Gold foil alpha particle scattering experiment was performed by ______.
Rutherford’s model of an atom has a very small ______ at the center.
When an α-particle happens to come near a nucleus the intense electric field of these scatters it through a large angle then what is the effect of atomic electrons on α-particle?
