What are salient features of liquid drop model of nucleus?

There are two important models proposed to explain the behavior and properties of the nucleus. They are liquid drop model and the shell model.
The liquid drop model was proposed by Niels Bohr in 1936, based on e external analogy between the nucleus and a liquid drop. Short range intermolecular forces operate in a liquid drop. The surface molecules at attracted to the inner molecules and the result is surface tension because of which the liquid drop takes spherical shape. The molecules in the liquid drop are in random motion and frequently collide with each other. The nudes possesses similar properties. The nucleons in a nucleus are in rapid motion and undergo frequent collisions. Each collision between nucleons involves an exchange of energy and momentum between them. If a certain amount of energy is imparted to the nucleus it gets excited me energy gets redistributed rapidly between the nucleons due to their mutual collisions. Some ofthe energy may be transferred to a surface nucleon. If energy of the nucleon is greater than its binding energy in the nucleus, the nucleon overcomes the nuclear forces and leaves the nucleus. The expulsion of a nuclear particle from the nucleus is similar to the evaporation of a molecule from a liquid drop.