Information valid for Mn-55 unless otherwise noted
[ATOM]

Manganese

 [ATOM]

Basic Information


Symbol: Mn
Atomic Number: 25
Mass: 54.938
Melting Point: 1245
Boiling Point: 1962
Number of Protons/Electrons: 25
Number of Neutrons: 30
Classification: Transition Metal
Crystal Structure: Cubic
Density: 7.43
Color: silverish/grayish

Atomic Structure

[Bohr Model of Manganese]  
Number of Energy Levels: 4

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 13
    Fourth Energy Level: 2

Isotopes

Isotope Half Life
Mn-525.59 days
Mn-52m21.1 minutes
Mn-533.7e+006 years
Mn-54312.2 days
Mn-55Stable
Mn-562.57 hours
Mn-571.45 minutes

Facts


Date of Discovery: 1774
Discoverer: Johann Gahn
Name Origin: From the Latin word mangnes (magnet)
Uses: steel, batteries, ceramics
Obtained From: pyrolusite, psilomelane, rhodochrosite

Related Links

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