Rhenium Properties

Rhenium

Physical

Melting Point

3,180.00 °C 2

Boiling Point

5,627.00 °C 2

Hardness

Mohs Hardness

7.00 3

Brinell Hardness

1,320.00 MPa 8

Vickers Hardness

1,350.00 MPa 7

Optical Properties

Refractive Index

Not Available 0

Reflectivity

Not Available 0

Speed of Sound

4,700.00 m/s 15

Allotropes

No 0

α Allotropes

Not Available 0

β Allotropes

Not Available 0

γ Allotropes

Not Available 0

Chemical

Chemical Formula

Re 0

Isotopes

Known Isotopes

33 6

Electronegativity

Pauling Electronegativity

1.90 11

Sanderson Electronegativity

Not Available 0

Allred Rochow Electronegativity

1.46 15

Mulliken-Jaffe Electronegativity

Not Available 0

Allen Electronegativity

1.60 21

Electropositivity

Pauling Electropositivity

2.10 42

Ionization Energies

1st Energy Level

760.00 kJ/mol 20

2nd Energy Level

1,260.00 kJ/mol 55

3rd Energy Level

2,510.00 kJ/mol 45

Electrochemical Equivalent

0.99 g/amp-hr 59

Electron Work Function

4.96 eV 7

Other Chemical Properties

Corrosion, Ionization, Radioactive Isotopes, Solubility 0

Mechanical

Density

Density At Room Temperature

21.02 g/cm³ 12

Density When Liquid (at m.p.)

18.90 g/cm3 4

Vapor Pressure

Vapor Pressure at 1000 K

Not Available 0

Vapor Pressure at 2000 K

0.00 (Pa) 29

Tensile Strength

1,070.00 MPa 3

Viscosity

Not Available 0

Elasticity properties

Shear Modulus

178.00 GPa 3

Bulk Modulus

370.00 GPa 2

Young's Modulus

463.00 GPa 2

Poisson Ratio

0.30 14

Other Mechanical Properties

Ductile, Malleable 0

Periodic Table

Symbol

Re 0

Group Number

7 11

Period Number

6 2

Block

d block 0

Element Family

Transition Metal 0

Atomic

Atomic Number

75 41

Atomic Weight

186.21 amu 36

Atomic Volume

8.85 cm3/mol 55

Electron Configuration

[Xe] 4f¹⁴ 5d⁵ 6s² 0

Valence Electron Potential

180.00 (-eV) 3

Atom

Number of Protons

75 40

Number of Neutrons

111 26

Number of Electrons

75 40

Crystal Structure

Hexagonal Close Packed (HCP) 0

Crystal Lattice

BCC-Crystal-Structure-.jpg#100 0

Radius of an Atom

Atomic Radius

137.00 pm 40

Covalent Radius

151.00 pm 34

Van der Waals Radius

200.00 pm 28

Lattice Constant

276.10 pm 64

Lattice Angles

π/2, π/2, 2 π/3 0

Lattice C/A Ratio

1.62 3

Adjacent Atomic Numbers

Next Element

44 0

Previous Element

32 0

Magnetic

Electrical Properties

Resistivity

193.00 nΩ·m 20

Electrical Conductivity

0.05 10⁶/cm Ω 33

Electron Affinity

14.50 kJ/mol 35

Electrical Property

Conductor 0

Magnetic Characteristics

Specific Gravity

21.02 5

Magnetic Ordering

Paramagnetic 0

Permeability

Not Available 0

Susceptibility

Not Available 0

Thermal

Specific Heat

0.13 J/(kg K) 39

Thermal Conductivity

48.00 W/m·K 31

Critical Temperature

Not Available 0

Molar Heat Capacity

25.48 J/mol·K 38

Thermal Expansion

6.20 µm/(m·K) 53

Standard Molar Entropy

36.90 J/mol.K 41

Enthalpy

Enthalpy of Vaporization

707.10 kJ/mol 3

Enthalpy of Fusion

33.05 kJ/mol 2

Enthalpy of Atomization

791.00 kJ/mol 2

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Rhenium Properties

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