Erbium

Erbium is a rare earth element that is commonly used in fiber optic technology and as a doping agent in solid-state lasers.

Atomic Structure

erbium atom electronic configuration

Atomic Information

Property	Value
Atomic Number	68
Symbol	Er
Atomic Mass	167.26 u
Electron Configuration	[Xe] 4f¹² 6s²
State at Room Temperature	Solid

Uses of Erbium

Used in fiber optics and lasers for communication and medical applications.
Used as a dopant in solid-state lasers and optical amplifiers.