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Darmstadtium vs Terbium

Darmstadtium
Terbium
Terbium vs Darmstadtium


Periodic Table
Symbol
Ds   
Tb   
Group Number
10   
8
Not Available   
Period Number
7   
6   
Block
d block   
f block   
Element Family
Probably Transition   
Lanthanide   
CAS Number
54083771   
8
7440279   
99+
Space Group Name
Not Available   
P63/mmc   
Space Group Number
Not Available   
194.00   
5
Facts
Interesting Facts
Not Available   
  • At times Terbium metal acts same as Calcium.
  • Terbium metal closely similar to Lanthanum metal.
  
Sources
Synthetically Produced   
Found in Minerals, Found with Other Rare Earth Metals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung   
Carl Gustaf Mosander   
Discovery
In 1994   
In 1842   
Abundance
  
  
Abundance In Universe
Not Available   
5 * 10-8 %   
27
Abundance In Sun
~-9999 %   
~0.00000001 %   
29
Abundance In Meteorites
Not Available   
0.00 %   
99+
Abundance In Earth's Crust
Not Available   
0.00 %   
40
Abundance In Oceans
Not Available   
0.00 %   
99+
Uses
Uses & Benefits
  • Currently known uses of Darmstadtium metal are limited to research purpose only. As only few atoms of this metal are produced.
  
  • Terbium salts are used in optical devices like laser devices.
  • Terbium’s alloy lengthens and shortens the magnetic field and this effect forms loudspeaker.
  
Industrial Uses
NA   
Electronic Industry   
Medical Uses
NA   
NA   
Other Uses
Research Purposes   
Alloys   
Biological Properties
  
  
Toxicity
Unknown   
Low 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   
1,356.00 °C   
33
Boiling Point
Not Available   
3,123.00 °C   
29
Appearance
  
  
Physical State
Solid   
Solid   
Color
Unknown   
Silvery White   
Luster
Unknown Luster   
Metallic   
Hardness
  
  
Brinell Hardness
Not Available   
677.00 MPa   
17
Vickers Hardness
Not Available   
863.00 MPa   
13
Speed of Sound
5,090.00 m/s   
9
2,620.00 m/s   
35
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
Ds   
Tb   
Isotopes
  
  
Known Isotopes
9   
29
26   
13
Electronegativity
  
  
Allred Rochow Electronegativity
Not Available   
1.10   
30
Electropositivity
  
  
Ionization Energies
  
  
1st Energy Level
955.20 kJ/mol   
5
603.40 kJ/mol   
99+
2nd Energy Level
1,891.10 kJ/mol   
16
1,174.80 kJ/mol   
99+
3rd Energy Level
3,029.60 kJ/mol   
25
2,417.00 kJ/mol   
99+
4th Energy Level
3,955.90 kJ/mol   
40
4,203.00 kJ/mol   
31
5th Energy Level
5,113.70 kJ/mol   
33
Not Available   
Electrochemical Equivalent
Not Available   
1.98 g/amp-hr   
31
Electron Work Function
Not Available   
3.00 eV   
36
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
110   
8
65   
99+
Electron Configuration
[Rn] 5f14 6d8 7s2   
[Xe] 4f9 6s2   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Terbium.jpg#100   
Atom
  
  
Number of Protons
110   
8
65   
99+
Number of Neutrons
161   
3
94   
36
Number of Electrons
110   
8
65   
99+
Radius of an Atom
  
  
Atomic Radius
132.00 pm   
99+
177.00 pm   
17
Covalent Radius
128.00 pm   
99+
194.00 pm   
16
Van der Waals Radius
Not Available   
221.00 pm   
22
Atomic Weight
281.00 amu   
6
158.93 amu   
99+
Atomic Volume
Not Available   
19.20 cm3/mol   
22
Adjacent Atomic Numbers
  
  
Previous Element
Meitnerium
  
Gadolinium
  
Next Element
Roentgenium
  
Dysprosium
  
Valence Electron Potential
Not Available   
46.80 (-eV)   
33
Lattice Constant
Not Available   
360.10 pm   
36
Lattice Angles
NA   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.58   
13
Mechanical Properties
Density
  
  
Density At Room Temperature
Not Available   
8.23 g/cm3   
99+
Density When Liquid (at m.p.)
Not Available   
7.65 g/cm3   
30
Tensile Strength
Not Available   
60.00 MPa   
17
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
29
Vapor Pressure at 2000 K
Not Available   
12.50 (Pa)   
8
Elasticity properties
  
  
Shear Modulus
Not Available   
22.10 GPa   
32
Bulk Modulus
Not Available   
38.70 GPa   
33
Young's Modulus
Not Available   
55.70 GPa   
34
Poisson Ratio
Not Available   
0.26   
21
Other Mechanical Properties
Unknown   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
Not Available   
8.23   
39
Magnetic Ordering
Unknown   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Unknown   
Conductor   
Resistivity
Not Available   
1.15 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   
0.18 J/(kg K)   
33
Molar Heat Capacity
Not Available   
28.91 J/mol·K   
9
Thermal Conductivity
Not Available   
11.10 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
Not Available   
10.30 µm/(m·K)   
38
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
330.90 kJ/mol   
26
Enthalpy of Fusion
Not Available   
10.80 kJ/mol   
34
Enthalpy of Atomization
Not Available   
314.00 kJ/mol   
33
Standard Molar Entropy
Not Available   
73.20 J/mol.K   
10
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