What are the features of Rutherford's model of atom?

Explanation

In 1909, Rutherford proposed a model of atom based on the alpha particle scattering experiment. The main features are
1) All the positively charged material in an atom formed a small dense centre, called the nucleus of the atom. The electrons were not a part of nucleus.
2) The negatively charged electrons revolve around the nucleus in well-defined orbits.
3) The size of the nucleus is very small as compared to the size of the atom.
This model is known as planetary model because the electrons revolve around the nucleus as planets revolve around the sun.
This model failed to explain the stability of atom.