Manganese (Mn)

Atomic Number: 25

Relative Atomic Mass: 54.9380455

Electronegativity: 1.55


Atomic Radius (Picometers): 140


Appearance: Silver


Occurrence: Natural

Melting Point (Kelvin): 1519

Boiling Point (Kelvin): 2334


Stable Isotopes: 55

Discoverer: Johan Gahn in 1774

Properties: Hard, Brittle, Paramagnetic

First Use: Paintings (Stone Age)

Modern Uses: Steel, Non-Rechargeable Batteries

Picture Courtesy of Tomihahndorf


©2011 Grant Dwyer