Selenio

Selenium is a chemical element with symbol Se and atomic number 34. It is a nonmetal with properties that are intermediate between those of its periodic table column-adjacent chalcogen elements sulfur and tellurium. It rarely occurs in its elemental state in nature, or as pure ore compounds.

Properties

• Phase: Solid
• Density: 4.81 g/cm³
• Melting Point: 494 K
• Boiling Point: 958 K

Uses