Advertisements
Advertisements
Question
Give the evidence for the existence of nucleus in an atom.
Advertisements
Solution
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.
APPEARS IN
RELATED QUESTIONS
On the basis of Rutherford’s model of an atom, which subatomic particle is present in the nucleus of an atom?
What do you think would be the observation if the α-particle scattering experiment is carried out using a foil of a metal other than gold?
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?
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 ______.
Which of the following is NOT true in Rutherford's nuclear model of atom?
In Geiger - Marsden scattering experiment, the trajectory traced by an α-particle depends on ______.
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?
