Chemical elements
  Manganese
    Isotopes
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    Production
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    Chemical properties
    Physical properties
    PDB 117e-1cs0
    PDB 1cvn-1fbg
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    PDB 1gzc-1j53
    PDB 1j54-1kx3
    PDB 1kx4-1mav
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    PDB 2iie-2mnr
    PDB 2muc-2p9a
    PDB 2pal-2r21
    PDB 2r22-2vqr
    PDB 2vs3-2z87
    PDB 2zad-3bso
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    PDB 3e8q-3g82
    PDB 3gbc-3ilm
    PDB 3ioi-3lp0
    PDB 3lp1-3n25
    PDB 3n37-3pvb
    PDB 3py5-3tmy
    PDB 3twz-4e5f
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Physical properties of Manganese





Physical properties

Atomic properties of magnesium:

Molecular mass (Da): 54.938
Group number: 7
Period number: 4
Block: d-block
Electron configuration: [Ar] 4s2 3d5
Electron shell structure: 2.8.13.2

Magnesium temperature related properties:

Melting point (K): 1518
Boiling point (K): 2235
Heat capacity (kJxkg-1x°C-1): 0.481
Thermal conductivity (Wxm-1xK-1): 7.82
Coefficient of linear thermal expansion (µmxK-1): 21.7

Magnesium enthalpies:

Enthalpy of fusion (kJxmol-1): 13.2
Enthalpy of vaporization (kJxmol-1): 219.7
Enthalpy of atomization (kJxmol-1): 281

Bond enthalpies for diatomic gaseous molecules (kJxmol-1):

Mn - Mn: 25.9
Mn - H: 234 +- 29
Mn - O: 402.9 +- 41.8
Mn - S: 301 +- 17
Mn - Se: 239.3 +- 9.2
Mn - F: 423.4 +- 14.6
Mn - Cl: 360.7 +- 9.6
Mn - Br: 314.2 +- 9.6
Mn - I: 282.8 +- 9.6

Basic physical properties of magnesium:

Density (kgxm-3): 7470
Vapour pressure at 1244° (Pa): 121
Molar volume (cm3): 7.35
Velocity of sound (mxs-1): 5150
Young modulus (GPa): 198
Bulk modulus (GPa): 120
Mineral hardness: 6.0
Brinell hardness: 196
Electrical resistivity (Ohm-1xcm-1): 6950

Magnesium bond length:

Mn - Mn (Angstom): 2.731
Covalent radius (Angstrom): 1.39
Atomic radius (Angstom): 1.40

X-ray Crystallographic structure:

Space group: I-43m (217)
a (Angstrom): 8.9125
b (Angstrom): 8.9125
c (Angstrom): 8.9125
α (°): 90.0
β (°): 90.0
γ (°): 90.0


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