Properties of Zinc and Praseodymium
Boiling Point
3,130.00 °C
  
27
Hardness
  
  
Mohs Hardness
Not Available
  
Vickers Hardness
Not Available
  
Optical Properties
  
  
Refractive Index
Not Available
  
Reflectivity
Not Available
  
Speed of Sound
3,850.00 m/s
  
18
2,280.00 m/s
  
40
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Zn
  
Pr
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Sanderson Electronegativity
Not Available
  
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
  
Allen Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Ionization Energies
  
  
1st Energy Level
906.40 kJ/mol
  
6
527.00 kJ/mol
  
99+
2nd Energy Level
1,733.30 kJ/mol
  
27
1,020.00 kJ/mol
  
99+
3rd Energy Level
3,833.00 kJ/mol
  
12
2,086.00 kJ/mol
  
99+
Electrochemical Equivalent
1.22 g/amp-hr
  
99+
1.75 g/amp-hr
  
40
Other Chemical Properties
Density
  
  
Density At Room Temperature
7.14 g/cm3
  
99+
6.77 g/cm3
  
99+
Density When Liquid (at m.p.)
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available
  
Vapor Pressure at 2000 K
Not Available
  
Tensile Strength
Not Available
  
Not Available
  
Viscosity
Not Available
  
Not Available
  
Elasticity properties
  
  
Other Mechanical Properties
NA
  
Symbol
Zn
  
Pr
  
Group Number
Not Available
  
Period Number
4
  
6
  
Atomic Weight
140.91 amu
  
99+
Atomic Volume
9.20 cm3/mol
  
99+
20.80 cm3/mol
  
15
Electron Configuration
[Ar] 3d10 4s2
  
[Xe] 4f3 6s2
  
Valence Electron Potential
38.90 (-eV)
  
99+
42.64 (-eV)
  
99+
Atom
  
  
Crystal Lattice
HCP-Crystal-Structure-of-Zinc.jpg#100
  
HCP-Crystal-Structure-of-Praseodymium.jpg#100
  
Radius of an Atom
  
  
Lattice Angles
π/2, π/2, 2 π/3
  
π/2, π/2, 2 π/3
  
Lattice C/A Ratio
Not Available
  
Adjacent Atomic Numbers
  
  
Electrical Properties
  
  
Electrical Conductivity
0.17 106/cm Ω
  
12
0.01 106/cm Ω
  
99+
Electron Affinity
0.00 kJ/mol
  
40
50.00 kJ/mol
  
21
Magnetic Characteristics
  
  
Permeability
Not Available
  
Not Available
  
Susceptibility
Not Available
  
Not Available
  
Specific Heat
0.39 J/(kg K)
  
14
0.19 J/(kg K)
  
32
Thermal Conductivity
116.00 W/m·K
  
14
12.50 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Molar Heat Capacity
25.47 J/mol·K
  
39
27.20 J/mol·K
  
18
Thermal Expansion
30.20 µm/(m·K)
  
11
6.70 µm/(m·K)
  
99+
Standard Molar Entropy
41.60 J/mol.K
  
36
73.20 J/mol.K
  
10
Enthalpy
  
  
Enthalpy of Vaporization
7.32 kJ/mol
  
99+
296.80 kJ/mol
  
29
Enthalpy of Fusion
7.32 kJ/mol
  
99+
6.89 kJ/mol
  
99+
Enthalpy of Atomization
129.70 kJ/mol
  
99+
368.00 kJ/mol
  
24