CBSE Class 9 Chemistry Discovery Of Nucleus
- 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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