<p> A review of theoretical analyses and predictions of the 3He and 3H bound-state properties is presented. The predictions of various theoretical models, with the choice of different nucleon-nucleon potentials and methods for solving the Schroedinger equation fer the chosen potentials, are compared with one another. For given nucleon-nucleon forces (provided the potential has a soft-core) , the diagonalisation method seems to be preferable to other methods. Among the nucleon-nucleon potentials, the Riihimaki potential is favourable compared to other realistic N-N forces. </p> <p> The experimental data on 3H and 3He form factors together with Schiff's theoretical analysis of the 3H and 3He charge form factors is brought so that study phenomenologically the wave function of a bound three-nucleon (T=1/2, J=1/2) system. </p> / Thesis / Master of Science (MSc)