General questions in structure of atom for 10th class
Answers
General questions in structure of atom for 10th class are ;
1. In 1903 who had proposed the model of an atom, due to which electrons and protons were known to us?
A. Dalton
B. J.J. Thomson
C. Rutherford
D. Goldstein
Ans. B
2. Which model of an atom is similar to a Christmas pudding?
A. Thomson’s model
B. Rutherford model
C. Dalton’s Model
D. None of the above
Ans. A
3. The present concept of the structure of an atom is given by which scientist?
A. Rutherford
B. Goldstein
C. Niels Bohr
D. J.J. Thomson
Ans. C
What do you mean by Atomic Structure
4. Name an atom in which the nucleus of that atom does not contain any neutrons?
A. Oxygen
B. Hydrogen
C. Phosphorous
D. Sodium
Ans. B
5. Which model does not able to explain the stability of an atom?
A. Bohr’s Model
B. Rutherford’s Model
C. Thomson’s Model
D. None of the above
Ans. B
6. According to Goldstein’s experiment, on passing high voltage electricity through gases at very low pressure resulted in the discovery of:
A. Electron
B. Proton
C. Nucleus
D. Neutron
Ans. B
7. Who had discovered electron?
A. Niels Bohr
B. E. Goldstein
C. J.J.Thomson
D. James Chadwick
Ans. A
What is Catalysis?
8. In 1932 who had discovered neutron?
A. J.J Thomson
B. James Chadwick
C. Goldstein
D. Rutherford
Ans. B
9. Which model describes that there is no change in the energy of electrons as long as they keep revolving in the same energy level and atoms remains stable.
A. Bohr’s Model
B. Rutherford Model
C. J.J Thomson Model
D. None of the above
Ans. A
10. The correct electronic configuration of sodium is:
A. 2,8,1
B. 8,2,1
C. 2,1,8
D. 2,8,2
Ans. A