Publish On: 2019-03-16


Total Post: 504

Question: Describe Rutherford atom model

Reply On: 2013-10-10

lala singh

Total Post: 22

ANS: Describe Rutherford atom model

The essential features of Rutherford’s nuclear model of the atom or planetary model of the atom are as follows:

1. Every atom consists of a tiny central core, called the atomic nucleus, in which the entire positive charge and almost entire mass of the atom are concentrated.

2. The size of nucleus is of nucleus is of the order of 10-15 m, which is very small as compared to the size of the atom which is of the order of 10-10 m.

3. The atomic nucleus is surrounded by certain number of electrons. As atom on the whole is electrically neutral, the total negative charge of electrons surrounding the nucleus is equal to total positive charge on the nucleus.

4. These electrons revolve around the nucleus in various circular orbits as do the planets around the sun. The centripetal force required by electron for revolution is provided by the electrostatic force of attraction between the electrons and the nucleus.


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