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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
On the basis of Rutherford’s model of an atom, which subatomic particle is present in the nucleus of an atom?
In Rutherford’s experiment, generally the thin foil of heavy atoms, like gold, platinum etc. have been used to be bombarded by the α-particles. If the thin foil of light atoms like aluminium etc. is used, what difference would be observed from the above results?
What important information is furnished about the nucleus of an atom by the alpha particle scattering experiment of Rutherford?
Draw a neat labelled diagram
Rutherford's scattering experiment
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
What were the drawbacks of Rutherford’s model of an atom?
Proton was discovered by ______.
Gold foil alpha particle scattering experiment was performed by ______.
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?
The Rutherford α-particle experiment shows that most of the α-particles pass through almost unscattered. While some are scattered through large angles. What information does it give about the structure of the atom?
