Selenium

Selenium is a non-metal that is widely used in electronics, specifically in photovoltaic cells. It also plays a crucial role in various biological systems.

Atomic Structure

Atomic Information

Property	Value
Atomic Number	34
Symbol	Se
Atomic Mass	78.971 u
Electron Configuration	1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁴
State at Room Temperature	Solid

Uses of Selenium

Used in photovoltaic cells and solar panels.
Important in electronics, specifically for rectifiers and photoelectric cells.
Used in animal feed as a trace element essential for health.