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Properties of Strontium and Plutonium

Strontium
Plutonium
Properties of Plutonium & Strontium


Physical Properties
Melting Point
769.00 °C   
99+
639.50 °C   
99+
Boiling Point
1,384.00 °C   
99+
3,235.00 °C   
24
Hardness
  
  
Mohs Hardness
1.50   
18
Not Available   
Brinell Hardness
Not Available   
Not Available   
Vickers Hardness
Not Available   
Not Available   
Optical Properties
  
  
Refractive Index
Not Available   
Not Available   
Reflectivity
Not Available   
Not Available   
Speed of Sound
Not Available   
2,260.00 m/s   
99+
Allotropes
No   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
Chemical Properties
Chemical Formula
Sr   
Pu   
Isotopes
  
  
Known Isotopes
27   
12
20   
19
Electronegativity
  
  
Pauling Electronegativity
0.95   
99+
1.28   
33
Sanderson Electronegativity
0.72   
27
Not Available   
Allred Rochow Electronegativity
0.99   
37
1.22   
26
Mulliken-Jaffe Electronegativity
1.00   
18
Not Available   
Allen Electronegativity
0.96   
40
Not Available   
Electropositivity
  
  
Pauling Electropositivity
3.05   
7
2.72   
21
Ionization Energies
  
  
1st Energy Level
549.50 kJ/mol   
99+
584.70 kJ/mol   
99+
2nd Energy Level
1,064.20 kJ/mol   
99+
1,128.00 kJ/mol   
99+
3rd Energy Level
4,138.00 kJ/mol   
10
2,084.00 kJ/mol   
99+
Electrochemical Equivalent
1.64 g/amp-hr   
99+
2.28 g/amp-hr   
22
Electron Work Function
2.59 eV   
99+
Not Available   
Other Chemical Properties
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces.Radioactivity, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility   
?
Corrosion is a process which converts refined metals to their more stable forms, for example, its oxide and hydroxide. This process of metals getting corroded is a gradual destruction of metals by chemical reactions.Corrosion, 
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces.Radioactivity   
Mechanical Properties
Density
  
  
Density At Room Temperature
2.64 g/cm3   
99+
19.82 g/cm3   
13
Density When Liquid (at m.p.)
2.38 g/cm3   
99+
16.63 g/cm3   
8
Vapor Pressure
  
  
Vapor Pressure at 1000 K
121.00 (Pa)   
1
0.00 (Pa)   
26
Vapor Pressure at 2000 K
Not Available   
2.20 (Pa)   
12
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Elasticity properties
  
  
Shear Modulus
6.03 GPa   
99+
43.00 GPa   
18
Bulk Modulus
Not Available   
Not Available   
Young's Modulus
15.70 GPa   
99+
96.00 GPa   
21
Poisson Ratio
0.28   
17
0.21   
32
Other Mechanical Properties
NA   
?
Ductility of metals defines their ability to deform under tensile stress; this is often characterized by the metals ability to be stretched into a wire.Ductile, 
?
Malleability of metals defines their ability to deform under compressive stress; this is often characterized by the metals ability to form a thin sheet by hammering or rolling.Malleable   
Periodic Table
Symbol
Sr   
Pu   
Group Number
2   
16
0   
18
Period Number
5   
7   
Block
?
The s-block is on the left side of the periodic table that includes elements from the first two columns, the alkali metals (group 1) and alkaline earth metals (group 2), plus helium.s block   
?
The f-block is in the center-left of a 32-column periodic table but in the footnoted appendage of 18-column tables. These elements are not generally considered as part of any group. They are often called inner transition metals.f block   
Element Family
?
All alkaline earth metals are placed under group number 2 and s-block of periodic table. These metals are somewhat reactive at standard conditions. Alkaline earth metals appear shiny, silvery-white and are found in the earth’s crust.Alkaline Earth   
?
Total 15 metals are included in actinide series, from Actinium to Lawrencium. Actinide series is located under f and d block of the periodic table.Actinide   
Atomic Properties
Atomic Number
38   
99+
94   
24
Atomic Weight
87.62 amu   
99+
244.00 amu   
19
Atomic Volume
33.70 cm3/mol   
6
12.32 cm3/mol   
99+
Electron Configuration
[Kr] 5s2   
[Rn] 5f6 7s2   
Valence Electron Potential
25.70 (-eV)   
99+
64.90 (-eV)   
21
Atom
  
  
Number of Protons
38   
99+
94   
24
Number of Neutrons
50   
99+
150   
11
Number of Electrons
38   
99+
94   
24
Crystal Structure
?
In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in crystals and minerals.Face Centered Cubic (FCC)   
?
The mono-clinic crystal structure is one of the seven lattice point groups. Here vectors of crystal have unequal lengths. Here vectors of crystal have unequal lengths and have two vectors perpendicular to the 3rd oneMonoclinic (MON)   
Crystal Lattice
FCC-Crystal-Structure-of-Strontium.jpg#100   
MON-Crystal-Structure-of-Plutonium.jpg#100   
Radius of an Atom
  
  
Atomic Radius
215.00 pm   
5
159.00 pm   
28
Covalent Radius
195.00 pm   
15
187.00 pm   
20
Van der Waals Radius
249.00 pm   
7
200.00 pm   
28
Lattice Constant
608.49 pm   
6
618.30 pm   
4
Lattice Angles
π/2, π/2, π/2   
NA   
Lattice C/A Ratio
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Yttrium
  
Americium
  
Previous Element
Rubidium
  
Neptunium
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
132.00 nΩ·m   
24
1.46 nΩ·m   
99+
Electrical Conductivity
0.08 106/cm Ω   
26
0.01 106/cm Ω   
99+
Electron Affinity
5.03 kJ/mol   
38
Not Available   
Electrical Property
NA   
?
Poor conductor metals have moderate resistance to electric currents. They can conduct electric current through them with very low efficiency.Poor Conductor   
Magnetic Characteristics
  
  
Specific Gravity
2.64   
99+
19.84   
7
Magnetic Ordering
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic   
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic   
Permeability
Not Available   
Not Available   
Susceptibility
Not Available   
Not Available   
Thermal Properties
Specific Heat
0.30 J/(kg K)   
18
0.13 J/(kg K)   
39
Thermal Conductivity
35.40 W/m·K   
37
6.74 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
26.40 J/mol·K   
28
35.50 J/mol·K   
3
Thermal Expansion
22.50 µm/(m·K)   
18
46.70 µm/(m·K)   
6
Standard Molar Entropy
55.00 J/mol.K   
26
Not Available   
Enthalpy
  
  
Enthalpy of Vaporization
150.00 kJ/mol   
99+
344.00 kJ/mol   
25
Enthalpy of Fusion
9.16 kJ/mol   
38
2.82 kJ/mol   
99+
Enthalpy of Atomization
163.20 kJ/mol   
99+
360.00 kJ/mol   
26
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