Radioactive, Transitional, Tc-x polyhedra, Tetragonal

• O-Rb-Tc
• P-Tc
• O-Sr-Tc
• Si-Tc-U
• H-N-O-Tc
• structural properties
• thermal and thermodynamic properties
• electronic and electrical properties
• phase transitions
• thermal expansion
• radioactive
• transitional
• non-disordered
• chalcogen