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प्रश्न
How was it shown that atom has empty space?
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उत्तर
Rutherford performed an experiment by allowing a stream of alpha particles to pass through a very thin gold foil. He observed that alpha particles pass through the metal foil without deviating from their path. This shows that an atom contains a large empty space called nuclear space.
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संबंधित प्रश्न
Fill in the blank
The ..........................of an atom is very hard and dense.
Complete the table below by identifying A, B, C, D, E and F.
FILL IN THE BLANK
The protons and neutrons are held firmly in the nucleus by strong .........................
Tick the most appropriate answer
Which one of the following scientists put forward the theory regarding the extra-nuclear structure of the atom?
- James Chadwick
- John Dalton
- Rutherford
- Niels Bohr
Tick the most appropriate answer.
Which of the following is used as a coolant in nuclear reactor?
- liquid sodium
- liquid nitrogen
- cadmium steel rods
- plutonium
State Dalton's atomic theory.
Where is the nucleus of an atom situated?
‘Electrons revolve around the nucleus in fixed orbits or shells called energy levels’. State how these energy levels are represented.
What is meant by the term nucleus
Differentiate between the following term:
Nucleus and nucleons
