1 Periodic Table
1.1 Symbol
1.2 Group Number
1.4 Period Number
1.5 Block
1.6 Element Family
Lanthanide
Transition Metal
1.7 CAS Number
744027953850354
7429905
54386242
1.4 Space Group Name
3.5 Space Group Number
5 Facts
5.1 Interesting Facts
- At times Terbium metal acts same as Calcium.
- Terbium metal closely similar to Lanthanum metal.
- IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
- In the production of Dubnium, thermal gradient chromatography is used.
5.2 Sources
Found in Minerals, Found with Other Rare Earth Metals, Mining, Ores of Minerals
Produced by Bombarding Am243 with Ne22, Synthetically Produced
5.3 History
5.3.1 Who Discovered
Carl Gustaf Mosander
Joint Institute for Nuclear Research
5.3.2 Discovery
5.4 Abundance
5.4.1 Abundance In Universe
6.1.1 Abundance In Sun
~0.00000001 %~-9999 %
1E-08
0.1
6.2.2 Abundance In Meteorites
6.4.2 Abundance In Earth's Crust
1.1.1 Abundance In Oceans
2.3.3 Abundance In Humans
4 Uses
4.1 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 Dubnium metal are limited to research purpose only.
4.1.1 Industrial Uses
4.1.2 Medical Uses
4.1.3 Other Uses
4.2 Biological Properties
4.2.1 Toxicity
4.2.2 Present in Human Body
4.2.3 In Blood
NA0.00 Blood/mg dm-3
0
1970
4.8.3 In Bone
5 Physical
5.1 Melting Point
7.3 Boiling Point
8.8 Appearance
8.8.1 Physical State
8.8.2 Color
8.8.3 Luster
8.9 Hardness
8.9.1 Mohs Hardness
1.2.2 Brinell Hardness
1.8.2 Vickers Hardness
2.2 Speed of Sound
2.5 Optical Properties
2.5.1 Refractive Index
2.7.2 Reflectivity
3.7 Allotropes
3.7.1 α Allotropes
Not Available
Not Available
3.7.2 β Allotropes
Not Available
Not Available
3.7.3 γ Allotropes
Not Available
Not Available
4 Chemical
4.1 Chemical Formula
4.2 Isotopes
4.2.1 Known Isotopes
4.4 Electronegativity
4.4.1 Pauling Electronegativity
4.6.4 Sanderson Electronegativity
5.1.1 Allred Rochow Electronegativity
5.1.4 Mulliken-Jaffe Electronegativity
6.1.1 Allen Electronegativity
6.2 Electropositivity
6.2.1 Pauling Electropositivity
6.5 Ionization Energies
6.5.1 1st Energy Level
603.40 kJ/mol664.80 kJ/mol
375.7
26130
6.5.2 2nd Energy Level
1,174.80 kJ/mol1,546.70 kJ/mol
710.2162
28750
6.6.1 3rd Energy Level
2,417.00 kJ/mol2,378.40 kJ/mol
1600
34230
6.7.1 4th Energy Level
4,203.00 kJ/mol3,298.80 kJ/mol
2780
37066
6.7.4 5th Energy Level
NA4,305.20 kJ/mol
4305.2
97510
6.9.2 6th Energy Level
6.9.3 7th Energy level
6.9.6 8th Energy Level
6.11.2 9th Energy Level
6.11.6 10th Energy Level
6.12.2 11th Energy Level
6.12.6 12th Energy Level
6.13.1 13th Energy Level
6.14.1 14th Energy Level
6.14.3 15th Energy Level
3.4.2 16th Energy Level
4.4.2 17th Energy Level
4.6.2 18th Energy Level
4.7.3 19th Energy Level
5.5.2 20th Energy Level
5.5.5 21st Energy Level
5.6.2 22nd Energy Level
6.3.4 23rd Energy Level
6.3.8 24th Energy Level
6.3.10 25th Energy Level
8.1.1 26th Energy Level
8.2.2 27th Energy Level
8.3.2 28th Energy Level
9.3.1 29th Energy Level
9.6.1 30th Energy Level
10.4 Electrochemical Equivalent
1.98 g/amp-hrNA
0.16812
8.3209
10.8 Electron Work Function
11.2 Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Radioactivity
12 Atomic
12.1 Atomic Number
13.4 Electron Configuration
[Xe] 4f9 6s2
[Rn] 5f14 6d3 7s2
13.5 Crystal Structure
Hexagonal Close Packed (HCP)
Body Centered Cubic (BCC)
13.5.1 Crystal Lattice
13.6 Atom
13.6.1 Number of Protons
14.5.3 Number of Neutrons
15.3.3 Number of Electrons
15.7 Radius of an Atom
15.7.1 Atomic Radius
177.00 pm139.00 pm
112
265
15.7.5 Covalent Radius
194.00 pm149.00 pm
96
260
15.9.3 Van der Waals Radius
16.4 Atomic Weight
158.93 amu268.00 amu
6.94
294
16.5 Atomic Volume
19.20 cm3/molNA
1.39
71.07
16.7 Adjacent Atomic Numbers
16.7.1 Previous Element
16.7.2 Next Element
16.8 Valence Electron Potential
16.9 Lattice Constant
360.10 pmNA
228.58
891.25
16.10 Lattice Angles
16.11 Lattice C/A Ratio
17 Mechanical
17.1 Density
17.1.1 Density At Room Temperature
8.23 g/cm329.30 g/cm3
0.534
40.7
17.1.8 Density When Liquid (at m.p.)
17.5 Tensile Strength
17.7 Viscosity
17.9 Vapor Pressure
17.9.1 Vapor Pressure at 1000 K
18.1.3 Vapor Pressure at 2000 K
12.50 (Pa)NA
2.62E-10
774
18.2 Elasticity properties
18.2.1 Shear Modulus
18.3.5 Bulk Modulus
18.4.3 Young's Modulus
18.6 Poisson Ratio
18.8 Other Mechanical Properties
Ductile, Malleable
Unknown
19 Magnetic
19.1 Magnetic Characteristics
19.1.1 Specific Gravity
19.1.5 Magnetic Ordering
19.1.6 Permeability
19.1.9 Susceptibility
19.2 Electrical Properties
19.2.1 Electrical Property
19.2.2 Resistivity
19.2.6 Electrical Conductivity
0.01 106/cm ΩNA
0.00666
0.63
19.2.10 Electron Affinity
20 Thermal
20.1 Specific Heat
20.2 Molar Heat Capacity
28.91 J/mol·KNA
16.443
62.7
21.2 Thermal Conductivity
21.4 Critical Temperature
21.7 Thermal Expansion
22.2 Enthalpy
22.2.1 Enthalpy of Vaporization
330.90 kJ/molNA
7.32
799.1
22.6.3 Enthalpy of Fusion
22.6.8 Enthalpy of Atomization
22.9 Standard Molar Entropy
73.20 J/mol.KNA
9.5
198.1