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Terbium vs Copernicium

Terbium
Copernicium
Copernicium vs Terbium


Periodic Table
Symbol
Tb  
Cn  
Group Number
3  
15
12  
6
Period Number
6  
7  
Block
f block  
d block  
Element Family
Lanthanide  
Transition Metal  
CAS Number
7440279  
99+
54084263  
7
Space Group Name
P63/mmc  
-  
Space Group Number
194.00  
7
187.00  
8
Facts
Interesting Facts
  • At times Terbium metal acts same as Calcium.
  • Terbium metal closely similar to Lanthanum metal.
  
Copernicium was first synthesized in 1996 by a German research team.  
Sources
Found in Minerals, Found with Other Rare Earth Metals, Mining, Ores of Minerals  
Synthetically Produced  
History
  
  
Who Discovered
Carl Gustaf Mosander  
Gesellschaft für Schwerionenforschung  
Discovery
In 1842  
In 1996  
Abundance
  
  
Abundance In Universe
0.00 %  
28
0.00 %  
39
Abundance In Sun
0.00 %  
29
-  
Abundance In Meteorites
0.00 %  
99+
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
40
0.00 %  
99+
Abundance In Oceans
0.00 %  
99+
-  
Abundance In Humans
0.00 %  
24
-  
Uses
Uses & Benefits
  • Terbium salts are used in optical devices like laser devices.
  • Terbium’s alloy lengthens and shortens the magnetic field and this effect forms loudspeaker.
  
  • Currently known uses of Copernicium metal are limited to research purpose only.
  
Industrial Uses
Electronic Industry  
-  
Medical Uses
-  
-  
Other Uses
Alloys  
Research Purposes  
Biological Properties
  
  
Toxicity
Low Toxic  
-  
Present in Human Body
No  
No  
In Blood
0.00 Blood/mg dm-3  
37
0.00 Blood/mg dm-3  
40
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
Melting Point
1,356.00 °C  
33
-  
Boiling Point
3,123.00 °C  
30
0.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
-  
Luster
Metallic  
Unknown Luster  
Hardness
  
  
Mohs Hardness
1.50  
19
4.00  
11
Brinell Hardness
677.00 MPa  
19
240.00 MPa  
99+
Vickers Hardness
863.00 MPa  
20
3,570.00 MPa  
2
Speed of Sound
2,620.00 m/s  
99+
3,570.00 m/s  
30
Optical Properties
  
  
Refractive Index
1.60  
32
1.90  
18
Reflectivity
35.00 %  
34
45.00 %  
32
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Tb  
Cn  
Isotopes
  
  
Known Isotopes
26  
13
1  
34
Electronegativity
  
  
Pauling Electronegativity
1.20  
40
1.90  
12
Sanderson Electronegativity
1.20  
32
1.30  
25
Allred Rochow Electronegativity
1.10  
31
1.90  
1
Mulliken-Jaffe Electronegativity
1.20  
39
1.90  
13
Allen Electronegativity
1.20  
99+
1.90  
8
Electropositivity
  
  
Pauling Electropositivity
2.20  
39
2.00  
99+
Ionization Energies
  
  
1st Energy Level
603.40 kJ/mol  
99+
1,154.90 kJ/mol  
2
2nd Energy Level
1,174.80 kJ/mol  
99+
2,170.00 kJ/mol  
9
3rd Energy Level
2,417.00 kJ/mol  
99+
4,245.40 kJ/mol  
9
4th Energy Level
4,203.00 kJ/mol  
99+
5,499.70 kJ/mol  
23
5th Energy Level
5,658.00 kJ/mol  
99+
3,570.00 kJ/mol  
99+
6th Energy Level
5,658.00 kJ/mol  
99+
7,030.00 kJ/mol  
99+
7th Energy level
5,420.00 kJ/mol  
99+
3,570.00 kJ/mol  
99+
8th Energy Level
5,650.00 kJ/mol  
99+
4,480.00 kJ/mol  
99+
9th Energy Level
5,650.00 kJ/mol  
99+
5,850.00 kJ/mol  
99+
10th Energy Level
5,650.00 kJ/mol  
99+
4,480.00 kJ/mol  
99+
11th Energy Level
5,650.00 kJ/mol  
99+
3,570.00 kJ/mol  
99+
12th Energy Level
5,650.00 kJ/mol  
99+
35,700.00 kJ/mol  
26
13th Energy Level
5,650.00 kJ/mol  
99+
4,480.00 kJ/mol  
99+
14th Energy Level
5,650.00 kJ/mol  
99+
1,157.00 kJ/mol  
99+
15th Energy Level
56,500.00 kJ/mol  
99+
35,700.00 kJ/mol  
99+
16th Energy Level
56,500.00 kJ/mol  
99+
35,700.00 kJ/mol  
99+
17th Energy Level
565.80 kJ/mol  
99+
1,157.00 kJ/mol  
16
18th Energy Level
5,658.00 kJ/mol  
99+
3,570.00 kJ/mol  
99+
19th Energy Level
565.00 kJ/mol  
99+
1,157.60 kJ/mol  
14
20th Energy Level
565.00 kJ/mol  
99+
0.00 kJ/mol  
99+
21st Energy Level
565.80 kJ/mol  
99+
1,157.00 kJ/mol  
28
22nd Energy Level
565.00 kJ/mol  
99+
357.00 kJ/mol  
99+
23rd Energy Level
565.80 kJ/mol  
99+
357.60 kJ/mol  
99+
24th Energy Level
565.80 kJ/mol  
99+
357.60 kJ/mol  
99+
25th Energy Level
565.00 kJ/mol  
99+
0.00 kJ/mol  
99+
26th Energy Level
565.80 kJ/mol  
99+
357.60 kJ/mol  
99+
27th Energy Level
565.80 kJ/mol  
99+
0.00 kJ/mol  
99+
28th Energy Level
565.80 kJ/mol  
99+
1,157.00 kJ/mol  
2
29th Energy Level
565.80 kJ/mol  
99+
1,157.00 kJ/mol  
3
30th Energy Level
565.00 kJ/mol  
99+
357.60 kJ/mol  
99+
Electrochemical Equivalent
1.98 g/amp-hr  
35
3.00 g/amp-hr  
21
Electron Work Function
3.00 eV  
99+
4.90 eV  
12
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility  
Ionization, Radioactive Isotopes, Radioactivity  
Atomic
Atomic Number
65  
99+
112  
6
Electron Configuration
[Xe] 4f9 6s2  
[Rn] 5f14 6d10 7s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
HCP-Crystal-Structure-of-Terbium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
65  
99+
112  
6
Number of Neutrons
94  
37
285  
1
Number of Electrons
65  
99+
112  
6
Radius of an Atom
  
  
Atomic Radius
177.00 pm  
19
147.00 pm  
36
Covalent Radius
194.00 pm  
16
122.00 pm  
99+
Van der Waals Radius
221.00 pm  
27
0.00 pm  
99+
Atomic Weight
158.93 amu  
99+
285.00 amu  
5
Atomic Volume
19.20 cm3/mol  
34
17.80 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Gadolinium
  
Roentgenium
  
Next Element
Dysprosium
  
Nihonium
  
Valence Electron Potential
46.80 (-eV)  
34
0.00 (-eV)  
99+
Lattice Constant
360.10 pm  
40
-  
Lattice Angles
π/2, π/2, 2 π/3  
-  
Lattice C/A Ratio
1.58  
35
1.58  
36
Mechanical
Density
  
  
Density At Room Temperature
8.23 g/cm3  
99+
23.70 g/cm3  
7
Density When Liquid (at m.p.)
7.65 g/cm3  
99+
23.70 g/cm3  
8
Tensile Strength
60.00 MPa  
35
0.10 MPa  
99+
Viscosity
0.00  
25
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
31
0.00 (Pa)  
37
Vapor Pressure at 2000 K
12.50 (Pa)  
8
0.00 (Pa)  
37
Elasticity properties
  
  
Shear Modulus
22.10 GPa  
99+
31.00 GPa  
25
Bulk Modulus
38.70 GPa  
40
35.00 GPa  
99+
Young's Modulus
55.70 GPa  
37
0.00 GPa  
99+
Poisson Ratio
0.26  
21
0.35  
9
Other Mechanical Properties
Ductile, Malleable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
8.23  
99+
23.70  
9
Magnetic Ordering
Paramagnetic  
-  
Permeability
0.00 H/m  
17
0.00 H/m  
17
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
Conductor  
-  
Resistivity
1.15 nΩ·m  
99+
4.90 nΩ·m  
99+
Electrical Conductivity
0.01 106/cm Ω  
99+
0.00 106/cm Ω  
99+
Electron Affinity
50.00 kJ/mol  
26
-  
Thermal
Specific Heat
0.18 J/(kg K)  
34
0.10 J/(kg K)  
99+
Molar Heat Capacity
28.91 J/mol·K  
12
13.10 J/mol·K  
99+
Thermal Conductivity
11.10 W/m·K  
99+
13.00 W/m·K  
99+
Critical Temperature
1,629.00 K  
37
1,323.00 K  
99+
Thermal Expansion
10.30 µm/(m·K)  
99+
13.80 µm/(m·K)  
31
Enthalpy
  
  
Enthalpy of Vaporization
330.90 kJ/mol  
99+
357.20 kJ/mol  
31
Enthalpy of Fusion
10.80 kJ/mol  
40
-  
Enthalpy of Atomization
314.00 kJ/mol  
99+
-  
Standard Molar Entropy
73.20 J/mol.K  
10
55.00 J/mol.K  
34
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