State the observations in alpha-particle scattering experiment which led Rutherford to make the following conclusions:
(i)Most of the space in an atom is empty.
(ii)Whole mass of an atom is concentrated in its centre.
(iii) Centre is positively charged.
Asked by Topperlearning User | 14th Jul, 2014, 05:09: PM
(i)Most of the alpha particles passed through the gold foil without getting deflected.
(ii)Very few particles were deflected from their path by 180o indicating that the whole mass of the atom is present in its centre in a very small volume.
(iii)Few particles were deflected at small angles from their path and very few were deflected from their path by 180o indicating that the positive charge of the atom occupies very little space and is located at the centre.
Answered by | 14th Jul, 2014, 07:09: PM
- How are scientist observe the atoms in an element?
- What are the observation of α-particle scattering experiment?
- What are α-particles?
- Why did Rutherford select a thin sheet of gold foil for his experiment?
- Where does the most of the mass of an atom reside? Which particles contribute to most of the mass of an atom?
- One of the observations during α-particle scattering is that most of the fast moving α-particles passed straight through the gold foil non-deviated. What does this observation explain?
- During Rutherford's experiment, a very small fraction of alpha-particles were deflected by 180o, what does this prove?
- In Rutherford's experiment, alpha-particles got deflected through various angles in different proportions. How is this observation made?
- What observations led to the prediction for the presence of neutrons and eventually its discovery?
- Were the observations predicted from alpha-particle scattering experiment based on Thomson's model of atom correct?
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