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Properties of Hassium and Strontium

Hassium
Strontium
Properties of Strontium & Hassium


Physical Properties
Melting Point
Not Available   
769.00 °C   
99+
Boiling Point
Not Available   
1,384.00 °C   
99+
Hardness
  
  
Mohs Hardness
Not Available   
1.50   
18
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   
Not Available   
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
Hs   
Sr   
Isotopes
  
  
Known Isotopes
7   
31
27   
12
Electronegativity
  
  
Pauling Electronegativity
Not Available   
0.95   
99+
Sanderson Electronegativity
Not Available   
0.72   
27
Allred Rochow Electronegativity
Not Available   
0.99   
37
Mulliken-Jaffe Electronegativity
Not Available   
1.00   
18
Allen Electronegativity
Not Available   
0.96   
40
Electropositivity
  
  
Pauling Electropositivity
Not Available   
3.05   
7
Ionization Energies
  
  
1st Energy Level
733.30 kJ/mol   
26
549.50 kJ/mol   
99+
2nd Energy Level
1,756.00 kJ/mol   
24
1,064.20 kJ/mol   
99+
3rd Energy Level
2,827.00 kJ/mol   
36
4,138.00 kJ/mol   
10
Electrochemical Equivalent
Not Available   
1.64 g/amp-hr   
99+
Electron Work Function
Not Available   
2.59 eV   
99+
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   
?
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   
Mechanical Properties
Density
  
  
Density At Room Temperature
40.70 g/cm3   
1
2.64 g/cm3   
99+
Density When Liquid (at m.p.)
Not Available   
2.38 g/cm3   
99+
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
121.00 (Pa)   
1
Vapor Pressure at 2000 K
Not Available   
Not Available   
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Elasticity properties
  
  
Shear Modulus
Not Available   
6.03 GPa   
99+
Bulk Modulus
Not Available   
Not Available   
Young's Modulus
Not Available   
15.70 GPa   
99+
Poisson Ratio
Not Available   
0.28   
17
Other Mechanical Properties
Unknown   
NA   
Periodic Table
Symbol
Hs   
Sr   
Group Number
8   
10
2   
16
Period Number
7   
5   
Block
?
The d-block is on the middle of the periodic table and includes elements from columns 3 through 12. These elements are also known as the transition metals because they show a transitivity in their properties i.e. they show a trend in their properties.d 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   
Element Family
?
What is Transition Metal? All transition metals are placed under the d-block from group number 3 to 12. Transition metals show characteristics like malleability, ductility and are good conductor of electricity.Transition Metal   
?
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   
Atomic Properties
Atomic Number
108   
10
38   
99+
Atomic Weight
269.00 amu   
9
87.62 amu   
99+
Atomic Volume
Not Available   
33.70 cm3/mol   
6
Electron Configuration
[Rn] 5f14 6d6 7s2   
[Kr] 5s2   
Valence Electron Potential
Not Available   
25.70 (-eV)   
99+
Atom
  
  
Number of Protons
108   
10
38   
99+
Number of Neutrons
158   
6
50   
99+
Number of Electrons
108   
10
38   
99+
Crystal Structure
?
The hexagonal crystal system consists of the 7 point groups such that all their space groups have the hexagonal lattice as underlying lattice. The hexagonal crystal family consists of the 12 point groups such that at least one of their space groups has theHexagonal Close Packed (HCP)   
?
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)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
FCC-Crystal-Structure-of-Strontium.jpg#100   
Radius of an Atom
  
  
Atomic Radius
126.00 pm   
99+
215.00 pm   
5
Covalent Radius
134.00 pm   
99+
195.00 pm   
15
Van der Waals Radius
Not Available   
249.00 pm   
7
Lattice Constant
Not Available   
608.49 pm   
6
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Meitnerium
  
Yttrium
  
Previous Element
Bohrium
  
Rubidium
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
Not Available   
132.00 nΩ·m   
24
Electrical Conductivity
Not Available   
0.08 106/cm Ω   
26
Electron Affinity
Not Available   
5.03 kJ/mol   
38
Electrical Property
Unknown   
NA   
Magnetic Characteristics
  
  
Specific Gravity
Not Available   
2.64   
99+
Magnetic Ordering
Unknown   
?
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
Not Available   
0.30 J/(kg K)   
18
Thermal Conductivity
Not Available   
35.40 W/m·K   
37
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
Not Available   
26.40 J/mol·K   
28
Thermal Expansion
Not Available   
22.50 µm/(m·K)   
18
Standard Molar Entropy
Not Available   
55.00 J/mol.K   
26
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
150.00 kJ/mol   
99+
Enthalpy of Fusion
Not Available   
9.16 kJ/mol   
38
Enthalpy of Atomization
Not Available   
163.20 kJ/mol   
99+
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