[en] A survey of data obtained for the last 10 years concerning nuclear-physical and chemical properties of francium and promethium is presented. The development of radiometric technology and new methods for nuclear products separation make it possible to obtain new neutron-deficit isotopes, and to study in detail the schemes of decay of most radioisotopes Pm and Fr. Chemical-analytical properties are studied in two directions. 1) A great number of Pmsup((3)) compounds is synthesized; the data are obtained on their physical, crystallographic and thermodynamic parameters, as well as the stability constants of numerous complex compounds with inorganic and organic ligands. For the francium similar parameters are obtained by extrapolation methods. 2) New and more effective methods for the separation of francium and promethium from the accompanying elements are considered. Most promising are the chromatographic methods (ion-exchange, extraction, gaseous) πT