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Hassium vs Lanthanum

Hassium
Lanthanum
Lanthanum vs Hassium


Periodic Table
Symbol
Hs  
La  
Group Number
8  
10
Not Available  
Period Number
7  
6  
Block
d block  
f block  
Element Family
Transition Metal  
Lanthanide  
CAS Number
54037579  
11
7439910  
99+
Space Group Name
Not Available  
P63/mmc  
Space Group Number
Not Available  
194.00  
5
Facts
Interesting Facts
  • Hassium metals rate of decay is very high.
  • Hassium metals 1st sample was synthesized through a nuclear reaction.
  
  • Lanthanum metal is highly malleable, ductile and sectile.
  • If exposed to air Lanthanum metal oxidizes rapidly.
  
Sources
Synthetically Produced  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung  
Carl Gustaf Mosander  
Discovery
In 1984  
In 1838  
Abundance
  
  
Abundance In Universe
Not Available  
2 * 10-7 %  
22
Abundance In Sun
~-9999 %  
~0.0000002 %  
25
Abundance In Meteorites
Not Available  
0.00 %  
32
Abundance In Earth's Crust
Not Available  
0.00 %  
19
Abundance In Oceans
Not Available  
0.00 %  
29
Uses
Uses & Benefits
  • Currently known uses of Hassium metal are limited to research purpose only.
  
  • It has no commercial uses, but its alloys are in high demand. Lanthanum and Nickel alloy is used for the hydrogen gas storage.
  • The best-known use for mischmetal alloy of Lanthanum is; as a ‘flints’ for cigarette lighters.
  
Industrial Uses
NA  
Electrical Industry, Electronic Industry  
Medical Uses
NA  
NA  
Other Uses
Research Purposes  
Alloys, Mirror Manufacturing  
Biological Properties
  
  
Toxicity
Unknown  
Low Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
37
Not Available  
In Bone
0.00 p.p.m.  
36
0.08 p.p.m.  
24
Physical Properties
Melting Point
Not Available  
920.00 °C  
99+
Boiling Point
Not Available  
3,469.00 °C  
18
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silver  
Silvery White  
Luster
NA  
NA  
Hardness
  
  
Mohs Hardness
Not Available  
2.50  
14
Brinell Hardness
Not Available  
350.00 MPa  
30
Vickers Hardness
Not Available  
360.00 MPa  
26
Speed of Sound
Not Available  
2,475.00 m/s  
37
Optical Properties
  
  
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  
La  
Isotopes
  
  
Known Isotopes
7  
31
31  
8
Electronegativity
  
  
Pauling Electronegativity
Not Available  
1.10  
99+
Allred Rochow Electronegativity
Not Available  
1.08  
31
Electropositivity
  
  
Pauling Electropositivity
Not Available  
2.90  
10
Ionization Energies
  
  
1st Energy Level
733.30 kJ/mol  
26
538.10 kJ/mol  
99+
2nd Energy Level
1,756.00 kJ/mol  
24
1,067.00 kJ/mol  
99+
3rd Energy Level
2,827.00 kJ/mol  
36
1,850.30 kJ/mol  
99+
4th Energy Level
3,637.50 kJ/mol  
99+
4,819.00 kJ/mol  
22
5th Energy Level
4,940.00 kJ/mol  
34
5,940.00 kJ/mol  
25
6th Energy Level
6,175.10 kJ/mol  
23
Not Available  
7th Energy level
7,535.50 kJ/mol  
21
Not Available  
8th Energy Level
8,857.40 kJ/mol  
20
Not Available  
Electrochemical Equivalent
Not Available  
1.73 g/amp-hr  
99+
Electron Work Function
Not Available  
3.50 eV  
31
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Ionization, Radioactive Isotopes, Solubility  
Atomic Properties
Atomic Number
108  
10
57  
99+
Electron Configuration
[Rn] 5f14 6d6 7s2  
[Xe] 5d2 6s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Double Hexagonal Close Packed (DHCP)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
DHCP-Crystal-Structure-of-Lanthanum.jpg#100  
Atom
  
  
Number of Protons
108  
10
57  
99+
Number of Neutrons
158  
6
82  
99+
Number of Electrons
108  
10
57  
99+
Radius of an Atom
  
  
Atomic Radius
126.00 pm  
99+
187.00 pm  
8
Covalent Radius
134.00 pm  
99+
207.00 pm  
6
Van der Waals Radius
Not Available  
240.00 pm  
13
Atomic Weight
269.00 amu  
9
138.91 amu  
99+
Atomic Volume
Not Available  
20.73 cm3/mol  
16
Adjacent Atomic Numbers
  
  
Previous Element
Bohrium
  
Barium
  
Next Element
Meitnerium
  
Cerium
  
Valence Electron Potential
Not Available  
40.71 (-eV)  
99+
Lattice Constant
Not Available  
377.20 pm  
28
Lattice Angles
NA  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
Not Available  
1.62  
2
Mechanical Properties
Density
  
  
Density At Room Temperature
40.70 g/cm3  
1
6.16 g/cm3  
99+
Density When Liquid (at m.p.)
Not Available  
5.94 g/cm3  
99+
Tensile Strength
Not Available  
Not Available  
Viscosity
Not Available  
Not Available  
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available  
0.98 (Pa)  
15
Elasticity properties
  
  
Shear Modulus
Not Available  
14.30 GPa  
40
Bulk Modulus
Not Available  
27.90 GPa  
99+
Young's Modulus
Not Available  
36.60 GPa  
99+
Poisson Ratio
Not Available  
0.28  
17
Other Mechanical Properties
Unknown  
Ductile  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
Not Available  
6.17  
99+
Magnetic Ordering
Unknown  
Paramagnetic  
Electrical Properties
  
  
Electrical Property
Unknown  
Conductor  
Resistivity
Not Available  
615.00 nΩ·m  
7
Electrical Conductivity
Not Available  
0.01 106/cm Ω  
99+
Electron Affinity
Not Available  
48.00 kJ/mol  
23
Thermal Properties
Specific Heat
Not Available  
0.19 J/(kg K)  
32
Molar Heat Capacity
Not Available  
27.11 J/mol·K  
21
Thermal Conductivity
Not Available  
13.40 W/m·K  
99+
Critical Temperature
Not Available  
Not Available  
Thermal Expansion
Not Available  
12.10 µm/(m·K)  
32
Enthalpy
  
  
Enthalpy of Vaporization
Not Available  
399.60 kJ/mol  
17
Enthalpy of Fusion
Not Available  
6.20 kJ/mol  
99+
Enthalpy of Atomization
Not Available  
431.00 kJ/mol  
16
Standard Molar Entropy
Not Available  
56.90 J/mol.K  
23
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