Manganese

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Manganese
Mn
In situ availability: available
Necessity:
Atomic number: 25
Atomic mass: 54.938049
group: 7
period: 4
normal phase: Solid
series: Transition Metals
density: 7.21 g/cm3
melting point: 1519K,
1246°C,
2275°F
boiling point: 2334K,
2061°C,
3742°F
N/AN/AN/A
Cr ← Mn → Fe
MoTcRu
Atomic radius (pm): 140
Bohr radius (pm): 161
Covalent radius (pm): 139
Van der Waals radius (pm):
ionic radius (pm): (+2) 67
1st ion potential (eV): 7.43
Electron Configuration
1s2
2s2 2p6
3s2 3p6 3d5
4s2
Electrons Per Shell
2, 8, 13, 2
Electronegativity: 1.55
Electron Affinity: Unstable anion
Oxidation states: 7, 6, 4, 2, 3
Magnetism: Nonmagnetic
Crystal structure: Body centered cubic

Manganese is a Transition Metal in group 7. It has a Body centered cubic crystalline structure. This element has a stable isotope of 55


Lunar Availability[edit]

Lunar manganese is found substituting for iron in various oxides, in approximately a 1:70 ratio [1].

References[edit]

  1. Washington University in Saint Louis, Department of Earth and Planetary Sciences How Do We Know That It’s a Rock From the Moon?




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