Model of An Atom Quizz

1. Which of the following scientist discovered neutrons?

J. Chadwick

J.J. Thomson

Ernest Rutherford

John Dalton

Question 1 of 20

2. A glass rod gets electrically charged on rubbing with silk cloth. What’s the source of this charge?

Presence of an electric source near the rod

Presence of electric current in the rod

Presence of atoms in the rod

Presence of magnetic particles in the rod

Question 2 of 20

3. The proton has a charge equal in magnitude but opposite in sign to that of:

neutron

deuterons

electron

canal rays

Question 3 of 20

4. What is the other name for anode rays?

Proton rays

Cation rays

Thomson rays

Canal rays

Question 4 of 20

5. Which scientist discovered the anode rays?

J.J. Thomson

Joseph L. Proust

E. Goldstein

Ernest Rutherford

Question 5 of 20

6. Which of the following gases do not have neutron in the nucleus of their atoms?

Oxygen

Nitrogen

Helium

Hydrogen

Question 6 of 20

7. Which of the following is not true for cathode rays?

Cathode rays consist of negatively charged particles.

Cathode rays were discovered by J.J Thomson.

Nature of cathode rays depend upon the nature of the gas in discharge tube.

Cathode rays are produced inside the discharge tube.

Question 7 of 20

8. What will be the net charge on the atom if it contains one electron and one proton?

-2

No charge

Question 8 of 20

9. According to J.J Thomson, an atom is a positively charged sphere. Which sub-atomic particles is embedded in it?

Electrons

Canal Rays

Protons

Neutrons

Question 9 of 20

10. The following picture represents which model of an atom?

Bohr’s model of an Atom

Thomson model of an atom

Dalton’s Theory

Rutherford’s model of an atom

Question 10 of 20

11. The canal rays led to the discovery of which subatomic particle?

Beta rays

Protons

Neutrons

Electrons

Question 11 of 20

12. Which of the following is not a part of J. J. Thomson’s atomic model?

Atoms have embedded negatively charged electrons.

Atom is a gel of positive charge.

Electrons help in conduction of electricity

Atom is a hollow sphere.

Question 12 of 20

13. Select the sub-atomic particles that are present in the nucleus of an atom.

A. Electrons
B. Protons
C. Neutrons

Only B

Only C

Both A and B

Both B and C

Question 13 of 20

14. Thomson proposed the model of an atom to be similar to that of a:

Solar system

See saw

Christmas pudding

Orange

Question 14 of 20

15. What are the essential conditions for the production of anode rays?

High voltage and low pressure

High voltage and high pressure

Low voltage and high pressure

Low voltage and low pressure

Question 15 of 20

16. What is the charge of a proton in coulombs?

Question 16 of 20

17. The mass of an electron is approximately 1/2000 times that of:

Proton

Beta particle

Neutron

Alpha particle

Question 17 of 20

18. Electron is represented as:

e^-2

P⁺

e^–

P⁺²

Question 18 of 20

19. The lightest positively charged particles are formed from:

Hydrogen

Gamma particle

Beta particle

Helium

Question 19 of 20

20. What is the charge on an electron?

-2

-1

Question 20 of 20