Rutherford's Atomic Model

Q.

What will be the result of Rutherfords gold foil experiment, if Thomsons model of the atom was true?

Q.

Who is known as the father of nuclear physics?

1. Bohr

2. J.J Thomson

3. E.Rutherford

4. Chadwick

Q.

What are the limitations of Rutherford model of atom?

Q. According to Rutherford, electrons revolve around nucleus in path.

1. circular
2. rectangular
3. elliptical

Q.

From the $\alpha$-particle scattering experiment, Rutherford concluded that

1. $\alpha$-particles can come within a distance of the order of ${10}^{-15}m$ of the nucleus.

2. The radius of the nucleus is of the order of ${10}^{-15}$m.

3. Scattering follows Coulomb's law.

4. The positively charged parts of the atom move with extremely high velocities.

Q. Statement: Rutherford’s atomic model was a great improvement over the previous models, but later discarded

Reason: Rutherford’s atomic model failed to explain the stability of electrons in a circular path.

Which of the following holds true?

1. Only Statement is true but the Reason is false.
2. 
   Only Reason is true but the Statement is false.
   
3. 
   Both Statement and Reason are true and Reason is the correct explanation for Statement.
   
4. 
   Both Statement and Reason are true but Reason is not the correct explanation for Statement.
   

Q. Particles which were deflected backward in Rutherford's experiment were hit upon by ________.

1. nucleus
2. empty space
3. electrons
4. ions

Q. Who among the following proposed the plum pudding model of an atom?

1. James Chadwick
2. J.J. Thomson
3. E. Goldstein
4. Ernst Rutherford

Q.

Nucleus model of the atom was proposed by:

1. Thomson

2. Niel Bohr

3. Moseley

4. Rutherford

Q.

In Rutherford alpha-scattering experiment, a foil of ____________ was used.

1. gold

2. silver

3. magnesium

4. aluminium

Q.

Which experiment led to discovery of nucleus?

Q. One of the drawbacks of Rutherford's Atomic Model is that it failed to explain ______ of atoms.

1. size
2. stability
3. shape
4. charge

Q.

According to Rutherford's atomic model, if a large play ground represents an atomic size, which of the following objects best represent the size of a nucleus?

1. A football

2. A volley ball

3. A tennis ball

4. Baseball

Q. describe the model of the atom suggested by Rutherford. what was the drawback of this model? what was Niels Bohrs contribution to finding out the structure of the atom?

Q. Discuss the observations that helped E. Rutherford conclude the concept of a concentrated nucleus.

Q.

Is there any other difference in the atomic structure of bohr and Rutherford except that of shells?

Q.

An atom is electrically______because the number of electrons are equal to the number of protons.

Q.

Give the limitations of rutherfords model of an atom

Q.

The Rutherford’s atomic model was revised by _______ .

1. James Chadwick

2. John Dalton

3. Neil Bohr

4. William Crooke

Q.

Rutherford model of an atom is similar to the _______

1. Solar system

2. Christmas pudding

3. Water melon

4. Musk melon

Q.

The major drawback of Rutherford's model of the atom is:

1. It does not provide any clue to explain the shapes of molecules.

2. It does not explain the effect of electric field on the atoms.

3. It does not explain the stability of the atom.

4. None of the above.

Q. Rutherford discovered that the center of an atom is charged.

1. negatively
2. positively
3. neutrally

Q. Thomson's model of the atom is also called

1. Plum Pudding Model
2. Raisin Pudding Model
3. Watermelon Model
4. All of the above

Q.

As a result of alpha particle scattering experiment, Rutherford concluded that:

1. The center of atom has negative charge

2. Atomic mass is spread over the whole atom

3. The center of the atom is empty

4. Most part of the atom is empty

Q.

Give reason for the following

Rutherfords atomic model is called the ‘planetary model of an atom’.

Q. Discuss the observations that helped E. Rutherford conclude the concept of a concentrated nucleus.

Q.

Which of the following concepts was not considered in Rutherfords atomic model?

1. The electrical neutrality of atom

2. The quantization of energy

3. Electrons revolve around the nucleus at very high speeds

4. Existence of nuclear forces of attraction on the electrons

Q. Protons were discovered by ______.

1. James Chadwick
2. Ernest Rutherford
3. J.J Thomson
4. E.Goldstein

Q. Rutherford discovered that the center of an atom is charged.

1. positively
2. negatively
3. neutrally

Q.

If Rutherfords atomic model is correct, then the atom should collapse. Why?