Question: what are the physical properties of ruthenium?
Answer: Physical properties Ruthenium is a hard, silvery-white metal with a shiny surface. Its melting point is about 2,300 to 2,450°C (4,200 to 4,400°F) and its boiling point is about 3,900 to 4,150°C (7,100 to 7,500°F). Its density is 12.41 grams per cubic centimeter.