Thomson's Model of an Atom

Q.

Name the scientist who first measured the e/m ratio of an electron.

1. J. J Thomson

2. James Chadwick

3. Dalton

4. Rutherford

Q.

Thomson compared atom to a watermelon.

1. False

2. True

Q. According to Thomson model, the mass of the atom is assumed to be uniformly distributed over the atom.

1. True
2. False

Q. Which among the following diagram represents “Plum pudding” or “chocolate chip” model?

1. A
2. B
3. D
4. C

Q. Who proposed the model of an atom similar to that of a Christmas pudding?

Q.

Thomsons atomic model is also called

1. Christmas pudding model

2. plum pudding model

3. both A and B

4. None of the above

Q. Following conclusions were drawn from the given figure :
I. There is a positively charged centre in an atom called the nucleus.
II. An atom consists of a positively charged sphere and the electrons are embedded in it.
III. The electrons revolve around the nucleus in well-defined orbits.
IV. The size of the nucleus is very small as compared to the size of the atom
V. Only certain special orbits known as discrete of electrons are allowed inside the atom.
Choose the correct statements.

1. I, II and III
2. II, III and V
3. All of these
4. I, III and IV

Q.

Thomson compared the atom to a watermelon.

1. True

2. False

Q. J.J. Thomson's atomic model could not justify the shielding of electrons from positive charges.

1. True
2. False