semi-empirical mass formula and liquid drop model

matt222

Dear all can any one explain to me the semi-empirical mass formula and liqiud drop model, I really dont understand what is the difference between them and which one came before the other. I really confused

law&theorem

refer to wiki
http://en.wikipedia.org/wiki/Semi-em...d_its_analysis

Thermalne

This is a better question for the Nuclear Particles subforum.