Properties of Strontium and Silver
Boiling Point
1,384.00 °C
  
99+
2,212.00 °C
  
99+
Hardness
  
  
Brinell Hardness
Not Available
  
Vickers Hardness
Not Available
  
Optical Properties
  
  
Refractive Index
Not Available
  
Not Available
  
Reflectivity
Not Available
  
Speed of Sound
Not Available
  
2,680.00 m/s
  
34
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Sr
  
Ag
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Sanderson Electronegativity
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Electropositivity
  
  
Pauling Electropositivity
Ionization Energies
  
  
1st Energy Level
549.50 kJ/mol
  
99+
731.00 kJ/mol
  
27
2nd Energy Level
1,064.20 kJ/mol
  
99+
2,070.00 kJ/mol
  
11
3rd Energy Level
4,138.00 kJ/mol
  
10
3,361.00 kJ/mol
  
19
Electrochemical Equivalent
1.64 g/amp-hr
  
99+
4.02 g/amp-hr
  
7
Other Chemical Properties
Density
  
  
Density At Room Temperature
2.64 g/cm3
  
99+
10.49 g/cm3
  
35
Density When Liquid (at m.p.)
2.38 g/cm3
  
99+
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available
  
Not Available
  
Tensile Strength
Not Available
  
Not Available
  
Viscosity
Not Available
  
Not Available
  
Elasticity properties
  
  
Bulk Modulus
Not Available
  
Other Mechanical Properties
NA
  
Symbol
Sr
  
Ag
  
Period Number
5
  
5
  
Atomic Weight
107.87 amu
  
99+
Atomic Volume
33.70 cm3/mol
  
6
10.30 cm3/mol
  
99+
Electron Configuration
[Kr] 5s2
  
[Kr] 4d10 5s1
  
Valence Electron Potential
25.70 (-eV)
  
99+
11.40 (-eV)
  
99+
Atom
  
  
Crystal Lattice
FCC-Crystal-Structure-of-Strontium.jpg#100
  
FCC-Crystal-Structure-of-Silver.jpg#100
  
Radius of an Atom
  
  
Lattice Angles
π/2, π/2, π/2
  
π/2, π/2, π/2
  
Lattice C/A Ratio
Not Available
  
Not Available
  
Adjacent Atomic Numbers
  
  
Electrical Properties
  
  
Resistivity
132.00 nΩ·m
  
24
15.87 nΩ·m
  
99+
Electrical Conductivity
0.08 106/cm Ω
  
26
0.63 106/cm Ω
  
1
Electron Affinity
5.03 kJ/mol
  
38
125.60 kJ/mol
  
5
Electrical Property
NA
  
Magnetic Characteristics
  
  
Permeability
Not Available
  
Not Available
  
Susceptibility
Not Available
  
Specific Heat
0.30 J/(kg K)
  
18
0.24 J/(kg K)
  
25
Thermal Conductivity
35.40 W/m·K
  
37
429.00 W/m·K
  
1
Critical Temperature
Not Available
  
Not Available
  
Molar Heat Capacity
26.40 J/mol·K
  
28
25.35 J/mol·K
  
99+
Thermal Expansion
22.50 µm/(m·K)
  
18
18.90 µm/(m·K)
  
23
Standard Molar Entropy
55.00 J/mol.K
  
26
42.60 J/mol.K
  
35
Enthalpy
  
  
Enthalpy of Vaporization
150.00 kJ/mol
  
99+
255.10 kJ/mol
  
37
Enthalpy of Fusion
9.16 kJ/mol
  
38
11.30 kJ/mol
  
31
Enthalpy of Atomization
163.20 kJ/mol
  
99+
284.50 kJ/mol
  
37