Structure of the Atom

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Question

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Question 1 :

Which of the following is/are regarded as universal particle(s)?

1. Electron
2. Neutron
3. Proton
4. All of these
Answer
26058

Question 2 :

Who discovered anode rays?

1. Rutherford
2. Goldstein
3. Chadwick
4. J. J. Thomson
Answer
26059

Question 3 :

“Electrons present in the extra nuclear portion are not stationary rather they revolve around the nucleus at high speed following a circular path”. Who said this?

1. Chadwick
2. Neils;Bohr
3. Rutherford
4. J. J. Thomson
Answer
26060

Question 4 :

Find the incorrect statement.

1. Most of the space in atom is empty
2. Neutrons were known at the time when Rutherford performed the scattering experiment.
3. A neutron is slightly heavier than a proton.
4. Proton is a universal particle.
Answer
26061

Question 5 :

How many times is the radius of extra nuclear portion more than that of the nucleus of an atom?

1. Five times
2. 10 times
3. 3 times
4. 2 times
Answer
26062