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. . . is the symbol for ruthenium an element from the platinum group metals or the precious metals. It is a transition metal in period 5.
. . . is its atomic weight. It can be bought isolated so it's not normal to have to do it in a laboratory. It extracted from the earth by mining in ores with other metals like silver, gold, palladium and platinum. To isolate it acids are added and it has to be melted.
The atomic number for Ru is . . .
Ruthenium does not tarnish at room temperperature. At about 800 degrees celsius it oxidises in air. It does not react in hot or cold acids, and not even in aqua regia. When combining aqua regia with potassium chlorate it reacts explosively.
therefore it has 44 electrons. It is a hard, silvery, white metal . Its melting point is 2250 degrees celsius and 3900 degrees celsius is its boiling point.
Tarnish- to become dull due to a reaction Room temperature- 21 degrees celsius Aqua regia- a highly corrosive solution of a mix of concetrate nitiric and hydrochloric acid Catalyst - an element used to speed up or slow down a chemical reaction. Superalloy - Alloys that resist to mechanical stregth, and have resistance to high temperatures, corrosion and oxidation.
Ru. . .
Glossary
Reactivity
44
101 . 07 . . .
Uses
It is used as the catalyst of alloys of platinum . Used in solar energy technology because of its good absortion of light . Its alloyed with gold (0.1%) to increase its corrotion resistance. Used in superalloys, like in the blades of jet engines . To protect underwater structures from salt water. Has important applications in medical chemistry. Used in radio therapy for eye tumors.
Agustin Rovira
