Zinc Properties

Zinc

Physical

Melting Point

419.58 °C 65

Boiling Point

907.00 °C 70

Hardness

Mohs Hardness

2.50 14

Brinell Hardness

327.00 MPa 32

Vickers Hardness

Not Available 0

Optical Properties

Refractive Index

1.00 2

Reflectivity

80.00 % 5

Speed of Sound

3,850.00 m/s 18

Allotropes

No 0

α Allotropes

Not Available 0

β Allotropes

Not Available 0

γ Allotropes

Not Available 0

Chemical

Chemical Formula

Zn 0

Isotopes

Known Isotopes

25 14

Electronegativity

Pauling Electronegativity

1.65 19

Sanderson Electronegativity

2.23 6

Allred Rochow Electronegativity

1.66 7

Mulliken-Jaffe Electronegativity

1.65 11

Allen Electronegativity

1.59 22

Electropositivity

Pauling Electropositivity

2.35 35

Ionization Energies

1st Energy Level

906.40 kJ/mol 6

2nd Energy Level

1,733.30 kJ/mol 27

3rd Energy Level

3,833.00 kJ/mol 12

Electrochemical Equivalent

1.22 g/amp-hr 52

Electron Work Function

4.33 eV 17

Other Chemical Properties

Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes 0

Mechanical

Density

Density At Room Temperature

7.14 g/cm³ 59

Density When Liquid (at m.p.)

6.57 g/cm3 37

Vapor Pressure

Vapor Pressure at 1000 K

Not Available 0

Vapor Pressure at 2000 K

Not Available 0

Tensile Strength

Not Available 0

Viscosity

Not Available 0

Elasticity properties

Shear Modulus

43.00 GPa 18

Bulk Modulus

70.00 GPa 19

Young's Modulus

108.00 GPa 19

Poisson Ratio

0.25 24

Other Mechanical Properties

NA 0

Periodic Table

Symbol

Zn 0

Group Number

12 6

Period Number

4 4

Block

d block 0

Element Family

Transition Metal 0

Atomic

Atomic Number

30 77

Atomic Weight

65.38 amu 71

Atomic Volume

9.20 cm3/mol 52

Electron Configuration

[Ar] 3d¹⁰ 4s² 0

Valence Electron Potential

38.90 (-eV) 48

Atom

Number of Protons

30 76

Number of Neutrons

35 58

Number of Electrons

30 76

Crystal Structure

Hexagonal Close Packed (HCP) 0

Crystal Lattice

HCP-Crystal-Structure-of-Zinc.jpg#100 0

Radius of an Atom

Atomic Radius

134.00 pm 43

Covalent Radius

122.00 pm 52

Van der Waals Radius

139.00 pm 45

Lattice Constant

266.49 pm 68

Lattice Angles

π/2, π/2, 2 π/3 0

Lattice C/A Ratio

Not Available 0

Adjacent Atomic Numbers

Next Element

24 0

Previous Element

6 0

Magnetic

Electrical Properties

Resistivity

59.00 nΩ·m 40

Electrical Conductivity

0.17 10⁶/cm Ω 12

Electron Affinity

0.00 kJ/mol 40

Electrical Property

Conductor 0

Magnetic Characteristics

Specific Gravity

6.90 49

Magnetic Ordering

Diamagnetic 0

Permeability

Not Available 0

Susceptibility

Not Available 0

Thermal

Specific Heat

0.39 J/(kg K) 14

Thermal Conductivity

116.00 W/m·K 14

Critical Temperature

Not Available 0

Molar Heat Capacity

25.47 J/mol·K 39

Thermal Expansion

30.20 µm/(m·K) 11

Standard Molar Entropy

41.60 J/mol.K 36

Enthalpy

Enthalpy of Vaporization

7.32 kJ/mol 60

Enthalpy of Fusion

7.32 kJ/mol 44

Enthalpy of Atomization

129.70 kJ/mol 55

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