Question

Which among the following is a feature of nuclear model of an atom as proposed by Rutherford?

• A. Presence of nucleus and movement of electrons in circular path
• B. Mass of the atom is uniformly distributed throughout the atom
• C. Size of the atom is equal to size of nucleus
• D. Electrons travel in a random path.

Answer 1

The correct option is A

Presence of nucleus and movement of electrons in circular path

On the basis of his experiments, Rutherford put forward the nuclear model of an atom with the following features:

There is a positively charged centre in an atom called nucleus and nearly all mass of an atom resides in the nucleus.

The electrons revolve around the nucleus in circular paths.

The size of the nucleus is very small as compared to the size of the atom.According to the data, size of nucleus is ${10}^5$ times less than the size of an atom.

Nearly all the mass of the atom is concentrated at the nucleus of an atom. It is not evenly distributed.