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Hassium vs Erbium

Hassium
Erbium
Erbium vs Hassium


Periodic Table
Symbol
Hs  
Er  
Group Number
8  
10
Not Available  
Period Number
7  
6  
Block
d block  
f block  
Element Family
Transition Metal  
Lanthanide  
CAS Number
54037579  
11
7440520  
35
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.
  
  • Erbium metal is used as alloyed with Vanadium to make it softer.
  • Recent studies shows that it is helpful for metabolism.
  
Sources
Synthetically Produced  
Mining  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung  
Carl Gustaf Mosander  
Discovery
In 1984  
In 1842  
Abundance
  
  
Abundance In Universe
Not Available  
2 * 10-7 %  
22
Abundance In Sun
~-9999 %  
~0.0000001 %  
26
Abundance In Meteorites
Not Available  
0.00 %  
36
Abundance In Earth's Crust
Not Available  
0.00 %  
32
Abundance In Oceans
Not Available  
0.00 %  
36
Uses
Uses & Benefits
  • Currently known uses of Hassium metal are limited to research purpose only.
  
  • It has a tendency to get tarnished in the open air, but when alloyed with elements like erbium, vanadium, its hardness levels decreases.
  • Its compounds like Erbium oxide is used in safety glasses of welders and metal workers.
  
Industrial Uses
NA  
Chemical Industry  
Medical Uses
NA  
NA  
Other Uses
Research Purposes  
Alloys  
Biological Properties
  
  
Toxicity
Unknown  
Mildly Toxic  
Present in Human Body
No  
No  
In Blood
0.00 Blood/mg dm-3  
37
Not Available  
In Bone
0.00 p.p.m.  
36
Not Available  
Physical Properties
Melting Point
Not Available  
1,522.00 °C  
28
Boiling Point
Not Available  
2,510.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silver  
Silvery White  
Luster
NA  
Lustrous  
Hardness
  
  
Brinell Hardness
Not Available  
814.00 MPa  
11
Vickers Hardness
Not Available  
589.00 MPa  
19
Speed of Sound
Not Available  
2,830.00 m/s  
28
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  
Er  
Isotopes
  
  
Known Isotopes
7  
31
31  
8
Electronegativity
  
  
Pauling Electronegativity
Not Available  
1.24  
36
Allred Rochow Electronegativity
Not Available  
1.11  
29
Electropositivity
  
  
Pauling Electropositivity
Not Available  
2.76  
18
Ionization Energies
  
  
1st Energy Level
733.30 kJ/mol  
26
589.30 kJ/mol  
99+
2nd Energy Level
1,756.00 kJ/mol  
24
1,150.00 kJ/mol  
99+
3rd Energy Level
2,827.00 kJ/mol  
36
2,194.00 kJ/mol  
99+
4th Energy Level
3,637.50 kJ/mol  
99+
4,120.00 kJ/mol  
33
5th Energy Level
4,940.00 kJ/mol  
34
Not Available  
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  
2.08 g/amp-hr  
28
Electron Work Function
Not Available  
Not Available  
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Ionization, Radioactive Isotopes, Solubility  
Atomic Properties
Atomic Number
108  
10
68  
99+
Electron Configuration
[Rn] 5f14 6d6 7s2  
[Xe] 4f12 6s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
HCP-Crystal-Structure-of-Erbium.jpg#100  
Atom
  
  
Number of Protons
108  
10
68  
99+
Number of Neutrons
158  
6
99  
33
Number of Electrons
108  
10
68  
99+
Radius of an Atom
  
  
Atomic Radius
126.00 pm  
99+
176.00 pm  
18
Covalent Radius
134.00 pm  
99+
189.00 pm  
19
Atomic Weight
269.00 amu  
9
167.26 amu  
99+
Atomic Volume
Not Available  
18.40 cm3/mol  
25
Adjacent Atomic Numbers
  
  
Previous Element
Bohrium
  
Holmium
  
Next Element
Meitnerium
  
Thulium
  
Valence Electron Potential
Not Available  
49.00 (-eV)  
29
Lattice Constant
Not Available  
355.88 pm  
39
Lattice Angles
NA  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
Not Available  
1.57  
17
Mechanical Properties
Density
  
  
Density At Room Temperature
40.70 g/cm3  
1
9.07 g/cm3  
99+
Density When Liquid (at m.p.)
Not Available  
8.86 g/cm3  
23
Tensile Strength
Not Available  
Not Available  
Viscosity
Not Available  
Not Available  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available  
0.00 (Pa)  
20
Elasticity properties
  
  
Shear Modulus
Not Available  
28.30 GPa  
25
Bulk Modulus
Not Available  
44.40 GPa  
27
Young's Modulus
Not Available  
69.90 GPa  
29
Poisson Ratio
Not Available  
0.24  
28
Other Mechanical Properties
Unknown  
Malleable  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
Not Available  
9.07  
32
Magnetic Ordering
Unknown  
Paramagnetic  
Electrical Properties
  
  
Electrical Property
Unknown  
Conductor  
Resistivity
Not Available  
0.86 nΩ·m  
99+
Electrical Conductivity
Not Available  
0.01 106/cm Ω  
99+
Electron Affinity
Not Available  
50.00 kJ/mol  
21
Thermal Properties
Specific Heat
Not Available  
0.17 J/(kg K)  
34
Molar Heat Capacity
Not Available  
28.12 J/mol·K  
11
Thermal Conductivity
Not Available  
14.50 W/m·K  
99+
Critical Temperature
Not Available  
Not Available  
Thermal Expansion
Not Available  
12.20 µm/(m·K)  
31
Enthalpy
  
  
Enthalpy of Vaporization
Not Available  
261.00 kJ/mol  
35
Enthalpy of Fusion
Not Available  
17.20 kJ/mol  
15
Enthalpy of Atomization
Not Available  
314.00 kJ/mol  
33
Standard Molar Entropy
Not Available  
73.10 J/mol.K  
11
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