Solid state.
Selenium is usually amorphous, brick-red powder.
+4 oxidation state
The element, Selenium, is a solid at room temperature.
Oxidation number of Se is +6. Oxidation number of O is -2.
Use for decolourizing of Ferric and Ferrus oxide , green colour to colourless. But Selenium have many oxidation state and can change oxidation state when furnace condition change Reduction to Oxidation.
It is normally solid. It melts at 221oC.
solid
Selenium is a solid.
+4 oxidation state
Selenium is a solid at 20 degrees Celsius!
The element, Selenium, is a solid at room temperature.
Selenium http://www.chemicalelements.com/elements/se.html
solid at room temperature
Oxidation number of Se is +6. Oxidation number of O is -2.
Maybe, silvery or brown
Use for decolourizing of Ferric and Ferrus oxide , green colour to colourless. But Selenium have many oxidation state and can change oxidation state when furnace condition change Reduction to Oxidation.
It is normally solid. It melts at 221oC.
Jons Jacob was the man to discover Selenium.