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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
What are the limitations of Rutherford’s model of the 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?
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?
How was it shown that an atom has a lot of empty space within it?
Name the particles used by Rutherford in his experiment on the discovery of nucleus. Also state the charge on these particles.
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
Proton was discovered by ______.
In Rutherford’s experiment, the bouncing of alpha particles suggests that the nucleus of an atom is negatively charged.
Which of the following is NOT true in Rutherford's nuclear model of atom?
