Home
 Compare Metals

Terbium vs Barium

Terbium
Barium
Barium vs Terbium


Periodic Table
Symbol
Tb  
Ba  
Group Number
Not Available  
2  
16
Period Number
6  
6  
Block
f block  
s block  
Element Family
Lanthanide  
Alkaline Earth  
CAS Number
7440279  
99+
7440393  
99+
Space Group Name
P63/mmc  
Im_ 3m  
Space Group Number
194.00  
5
229.00  
1
Facts
Interesting Facts
  • At times Terbium metal acts same as Calcium.
  • Terbium metal closely similar to Lanthanum metal.
  
  • Barium oxidizes very easily in the air.
  • All toxic compounds of Barium can easily dissolve in water.
  • Barium carbonate is used to produce a Rat poison and its other compound Barium nitrate is used in fireworks to produce green color.
  
Sources
Found in Minerals, Found with Other Rare Earth Metals, Mining, Ores of Minerals  
Earth's crust, Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Carl Gustaf Mosander  
Carl Wilhelm Scheele  
Discovery
In 1842  
In 1772  
Abundance
  
  
Abundance In Universe
5 * 10-8 %  
27
1 * 10-6 %  
16
Abundance In Sun
~0.00000001 %  
29
~0.000001 %  
18
Abundance In Meteorites
0.00 %  
99+
0.00 %  
20
Abundance In Earth's Crust
0.00 %  
40
0.03 %  
11
Abundance In Oceans
0.00 %  
99+
0.00 %  
8
Abundance In Humans
Not Available  
0.00 %  
12
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.
  
  • It is sued in chemical paint manufacturing and glass manufacturing.
  • Compounds of this metal are toxic; but still the barium sulfate is insoluble and given to patients suffering from digestive disorder.
  
Industrial Uses
Electronic Industry  
Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Medical Uses
NA  
NA  
Other Uses
Alloys  
Alloys  
Biological Properties
  
  
Toxicity
Low Toxic  
Low Toxic  
Present in Human Body
No  
Yes  
In Blood
Not Available  
0.07 Blood/mg dm-3  
15
In Bone
Not Available  
70.00 p.p.m.  
9
Physical Properties
Melting Point
1,356.00 °C  
33
725.00 °C  
99+
Boiling Point
3,123.00 °C  
29
1,140.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Silvery Gray  
Luster
Metallic  
NA  
Hardness
  
  
Mohs Hardness
Not Available  
1.25  
19
Brinell Hardness
677.00 MPa  
17
Not Available  
Vickers Hardness
863.00 MPa  
13
Not Available  
Speed of Sound
2,620.00 m/s  
35
1,620.00 m/s  
99+
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
Tb  
Ba  
Isotopes
  
  
Known Isotopes
26  
13
37  
2
Electronegativity
  
  
Pauling Electronegativity
Not Available  
0.89  
99+
Sanderson Electronegativity
Not Available  
0.68  
28
Allred Rochow Electronegativity
1.10  
30
0.97  
38
Mulliken-Jaffe Electronegativity
Not Available  
0.88  
22
Allen Electronegativity
Not Available  
0.88  
99+
Electropositivity
  
  
Pauling Electropositivity
Not Available  
3.11  
4
Ionization Energies
  
  
1st Energy Level
603.40 kJ/mol  
99+
502.90 kJ/mol  
99+
2nd Energy Level
1,174.80 kJ/mol  
99+
965.20 kJ/mol  
99+
3rd Energy Level
2,417.00 kJ/mol  
99+
3,600.00 kJ/mol  
14
4th Energy Level
4,203.00 kJ/mol  
31
Not Available  
Electrochemical Equivalent
1.98 g/amp-hr  
31
2.56 g/amp-hr  
20
Electron Work Function
3.00 eV  
36
2.70 eV  
99+
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility  
Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Atomic Properties
Atomic Number
65  
99+
56  
99+
Electron Configuration
[Xe] 4f9 6s2  
[Xe] 6s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Body Centered Cubic (BCC)  
Crystal Lattice
HCP-Crystal-Structure-of-Terbium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
65  
99+
56  
99+
Number of Neutrons
94  
36
81  
99+
Number of Electrons
65  
99+
56  
99+
Radius of an Atom
  
  
Atomic Radius
177.00 pm  
17
222.00 pm  
4
Covalent Radius
194.00 pm  
16
215.00 pm  
5
Van der Waals Radius
221.00 pm  
22
268.00 pm  
6
Atomic Weight
158.93 amu  
99+
137.33 amu  
99+
Atomic Volume
19.20 cm3/mol  
22
39.24 cm3/mol  
5
Adjacent Atomic Numbers
  
  
Previous Element
Gadolinium
  
Cesium
  
Next Element
Dysprosium
  
Lanthanum
  
Valence Electron Potential
46.80 (-eV)  
33
21.30 (-eV)  
99+
Lattice Constant
360.10 pm  
36
502.80 pm  
15
Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, π/2  
Lattice C/A Ratio
1.58  
13
Not Available  
Mechanical Properties
Density
  
  
Density At Room Temperature
8.23 g/cm3  
99+
3.51 g/cm3  
99+
Density When Liquid (at m.p.)
7.65 g/cm3  
30
3.34 g/cm3  
99+
Tensile Strength
60.00 MPa  
17
Not Available  
Viscosity
Not Available  
Not Available  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
29
7.11 (Pa)  
6
Vapor Pressure at 2000 K
12.50 (Pa)  
8
Not Available  
Elasticity properties
  
  
Shear Modulus
22.10 GPa  
32
4.90 GPa  
99+
Bulk Modulus
38.70 GPa  
33
9.60 GPa  
99+
Young's Modulus
55.70 GPa  
34
13.00 GPa  
99+
Poisson Ratio
0.26  
21
Not Available  
Other Mechanical Properties
Ductile, Malleable  
NA  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
8.23  
39
3.62  
99+
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Electrical Properties
  
  
Electrical Property
Conductor  
Superconductor  
Resistivity
1.15 nΩ·m  
99+
332.00 nΩ·m  
13
Electrical Conductivity
0.01 106/cm Ω  
99+
0.03 106/cm Ω  
40
Electron Affinity
50.00 kJ/mol  
21
13.95 kJ/mol  
36
Thermal Properties
Specific Heat
0.18 J/(kg K)  
33
0.20 J/(kg K)  
30
Molar Heat Capacity
28.91 J/mol·K  
9
28.07 J/mol·K  
12
Thermal Conductivity
11.10 W/m·K  
99+
18.40 W/m·K  
99+
Critical Temperature
Not Available  
Not Available  
Thermal Expansion
10.30 µm/(m·K)  
38
20.60 µm/(m·K)  
22
Enthalpy
  
  
Enthalpy of Vaporization
330.90 kJ/mol  
26
140.00 kJ/mol  
99+
Enthalpy of Fusion
10.80 kJ/mol  
34
7.66 kJ/mol  
99+
Enthalpy of Atomization
314.00 kJ/mol  
33
175.70 kJ/mol  
99+
Standard Molar Entropy
73.20 J/mol.K  
10
62.50 J/mol.K  
20
Periodic Table >>
<< All

Compare Lanthanide Series

Lanthanide Metals

Lanthanide Metals

» More Lanthanide Metals

Compare Lanthanide Series

» More Compare Lanthanide Series
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!