Manganese Properties

Manganese

Physical

Melting Point

1,245.00 °C 37

Boiling Point

1,962.00 °C 51

Hardness

Mohs Hardness

6.00 6

Brinell Hardness

196.00 MPa 41

Vickers Hardness

Not Available 0

Optical Properties

Refractive Index

Not Available 0

Reflectivity

Not Available 0

Speed of Sound

5,150.00 m/s 7

Allotropes

No 0

α Allotropes

Not Available 0

β Allotropes

Not Available 0

γ Allotropes

Not Available 0

Chemical

Chemical Formula

Mn 0

Isotopes

Known Isotopes

21 18

Electronegativity

Pauling Electronegativity

1.55 25

Sanderson Electronegativity

2.20 7

Allred Rochow Electronegativity

1.60 9

Mulliken-Jaffe Electronegativity

Not Available 0

Allen Electronegativity

1.75 15

Electropositivity

Pauling Electropositivity

2.45 29

Ionization Energies

1st Energy Level

717.30 kJ/mol 30

2nd Energy Level

1,509.00 kJ/mol 39

3rd Energy Level

3,248.00 kJ/mol 21

Electrochemical Equivalent

0.29 g/amp-hr 74

Electron Work Function

4.10 eV 25

Other Chemical Properties

Ionization, Radioactive Isotopes 0

Mechanical

Density

Density At Room Temperature

7.21 g/cm³ 57

Density When Liquid (at m.p.)

5.95 g/cm3 43

Vapor Pressure

Vapor Pressure at 1000 K

0.00 (Pa) 12

Vapor Pressure at 2000 K

Not Available 0

Tensile Strength

Not Available 0

Viscosity

Not Available 0

Elasticity properties

Shear Modulus

Not Available 0

Bulk Modulus

120.00 GPa 14

Young's Modulus

198.00 GPa 12

Poisson Ratio

Not Available 0

Other Mechanical Properties

NA 0

Periodic Table

Symbol

Mn 0

Group Number

7 11

Period Number

4 4

Block

d block 0

Element Family

Transition Metal 0

Atomic

Atomic Number

25 81

Atomic Weight

54.94 amu 75

Atomic Volume

1.39 cm3/mol 64

Electron Configuration

[Ar] 3d⁵ 4s² 0

Valence Electron Potential

220.00 (-eV) 2

Atom

Number of Protons

25 80

Number of Neutrons

30 60

Number of Electrons

25 80

Crystal Structure

Body Centered Cubic (BCC) 0

Crystal Lattice

BCC-Crystal-Structure-.jpg#100 0

Radius of an Atom

Atomic Radius

127.00 pm 47

Covalent Radius

139.00 pm 45

Van der Waals Radius

200.00 pm 28

Lattice Constant

891.25 pm 1

Lattice Angles

π/2, π/2, π/2 0

Lattice C/A Ratio

Not Available 0

Adjacent Atomic Numbers

Next Element

7 0

Previous Element

29 0

Magnetic

Electrical Properties

Resistivity

1.44 nΩ·m 55

Electrical Conductivity

0.01 10⁶/cm Ω 63

Electron Affinity

0.00 kJ/mol 40

Electrical Property

Conductor 0

Magnetic Characteristics

Specific Gravity

7.21 44

Magnetic Ordering

Paramagnetic 0

Permeability

Not Available 0

Susceptibility

Not Available 0

Thermal

Specific Heat

0.48 J/(kg K) 11

Thermal Conductivity

7.81 W/m·K 68

Critical Temperature

Not Available 0

Molar Heat Capacity

26.32 J/mol·K 29

Thermal Expansion

21.70 µm/(m·K) 21

Standard Molar Entropy

32.00 J/mol.K 48

Enthalpy

Enthalpy of Vaporization

219.70 kJ/mol 41

Enthalpy of Fusion

14.64 kJ/mol 23

Enthalpy of Atomization

280.30 kJ/mol 38

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Manganese Properties

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