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Terbium Iron Comparison

Terbium
Iron
Iron Terbium comparison


Periodic Table
Symbol
Tb  
Fe  
Group Number
3  
15
8  
10
Period Number
6  
4  
Block
f block  
d block  
Element Family
Lanthanide  
Transition Metal  
CAS Number
7440279  
99+
7439896  
99+
Space Group Name
P63/mmc  
Im_ 3m  
Space Group Number
194.00  
7
229.00  
2
Facts
Interesting Facts
  • At times Terbium metal acts same as Calcium.
  • Terbium metal closely similar to Lanthanum metal.
  
  • Iron is not always magnetic in nature, its allotrope are ferromagnetic and the B allotrope is nonmagnetic.
  • The blood consists Iron in hemoglobin molecules to transfer Oxygen in the body.
  
Sources
Found in Minerals, Found with Other Rare Earth Metals, Mining, Ores of Minerals  
Earth's crust, Found in Minerals  
History
  
  
Who Discovered
Carl Gustaf Mosander  
-  
Discovery
In 1842  
Before 5000 BC  
Abundance
  
  
Abundance In Universe
0.00 %  
28
0.11 %  
1
Abundance In Sun
0.00 %  
29
0.10 %  
1
Abundance In Meteorites
0.00 %  
99+
22.00 %  
1
Abundance In Earth's Crust
0.00 %  
40
6.30 %  
2
Abundance In Oceans
0.00 %  
99+
0.00 %  
12
Abundance In Humans
0.00 %  
24
0.01 %  
6
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.
  
  • Iron metal alloy steel is used in the application of civil engineering and manufacturing.
  • Alloys of iron with nickel, vanadium, chromium, tungsten and manganese have very useful properties.
  
Industrial Uses
Electronic Industry  
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
Pharmaceutical Industry, Surgical Instruments Manufacturing  
Other Uses
Alloys  
Alloys, Sculptures, Statues  
Biological Properties
  
  
Toxicity
Low Toxic  
Non Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
37
447.00 Blood/mg dm-3  
3
In Bone
0.00 p.p.m.  
99+
380.00 p.p.m.  
5
Physical
Melting Point
1,356.00 °C  
33
1,535.00 °C  
25
Boiling Point
3,123.00 °C  
30
2,750.00 °C  
39
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Gray  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
1.50  
19
4.00  
11
Brinell Hardness
677.00 MPa  
19
200.00 MPa  
99+
Vickers Hardness
863.00 MPa  
20
608.00 MPa  
27
Speed of Sound
2,620.00 m/s  
99+
5,120.00 m/s  
12
Optical Properties
  
  
Refractive Index
1.60  
32
2.60  
4
Reflectivity
35.00 %  
34
65.00 %  
18
Allotropes
No  
Yes  
α Allotropes
-  
Ferrite (alpha Iron)  
β Allotropes
-  
beta Iron  
γ Allotropes
-  
gamma Iron  
Chemical
Chemical Formula
Tb  
Fe  
Isotopes
  
  
Known Isotopes
26  
13
26  
13
Electronegativity
  
  
Pauling Electronegativity
1.20  
40
1.83  
15
Sanderson Electronegativity
1.20  
32
2.20  
8
Allred Rochow Electronegativity
1.10  
31
1.64  
9
Mulliken-Jaffe Electronegativity
1.20  
39
1.83  
16
Allen Electronegativity
1.20  
99+
1.80  
15
Electropositivity
  
  
Pauling Electropositivity
2.20  
39
2.17  
99+
Ionization Energies
  
  
1st Energy Level
603.40 kJ/mol  
99+
762.50 kJ/mol  
17
2nd Energy Level
1,174.80 kJ/mol  
99+
1,561.90 kJ/mol  
37
3rd Energy Level
2,417.00 kJ/mol  
99+
2,957.00 kJ/mol  
29
4th Energy Level
4,203.00 kJ/mol  
99+
5,290.00 kJ/mol  
25
5th Energy Level
5,658.00 kJ/mol  
99+
7,240.00 kJ/mol  
25
6th Energy Level
5,658.00 kJ/mol  
99+
9,560.00 kJ/mol  
20
7th Energy level
5,420.00 kJ/mol  
99+
12,060.00 kJ/mol  
15
8th Energy Level
5,650.00 kJ/mol  
99+
14,580.00 kJ/mol  
14
9th Energy Level
5,650.00 kJ/mol  
99+
22,540.00 kJ/mol  
5
10th Energy Level
5,650.00 kJ/mol  
99+
25,290.00 kJ/mol  
8
11th Energy Level
5,650.00 kJ/mol  
99+
28,000.00 kJ/mol  
9
12th Energy Level
5,650.00 kJ/mol  
99+
31,920.00 kJ/mol  
31
13th Energy Level
5,650.00 kJ/mol  
99+
34,830.00 kJ/mol  
9
14th Energy Level
5,650.00 kJ/mol  
99+
37,840.00 kJ/mol  
11
15th Energy Level
56,500.00 kJ/mol  
99+
44,100.00 kJ/mol  
99+
16th Energy Level
56,500.00 kJ/mol  
99+
47,206.00 kJ/mol  
99+
17th Energy Level
565.80 kJ/mol  
99+
122,200.00 kJ/mol  
1
18th Energy Level
5,658.00 kJ/mol  
99+
131,000.00 kJ/mol  
2
19th Energy Level
565.00 kJ/mol  
99+
140,500.00 kJ/mol  
3
20th Energy Level
565.00 kJ/mol  
99+
152,600.00 kJ/mol  
5
21st Energy Level
565.80 kJ/mol  
99+
163,000.00 kJ/mol  
5
22nd Energy Level
565.00 kJ/mol  
99+
173,600.00 kJ/mol  
4
23rd Energy Level
565.80 kJ/mol  
99+
188,100.00 kJ/mol  
4
24th Energy Level
565.80 kJ/mol  
99+
195,200.00 kJ/mol  
1
25th Energy Level
565.00 kJ/mol  
99+
762.00 kJ/mol  
15
26th Energy Level
565.80 kJ/mol  
99+
762.50 kJ/mol  
15
27th Energy Level
565.80 kJ/mol  
99+
762.50 kJ/mol  
14
28th Energy Level
565.80 kJ/mol  
99+
762.50 kJ/mol  
20
29th Energy Level
565.80 kJ/mol  
99+
762.50 kJ/mol  
20
30th Energy Level
565.00 kJ/mol  
99+
762.00 kJ/mol  
15
Electrochemical Equivalent
1.98 g/amp-hr  
35
0.69 g/amp-hr  
99+
Electron Work Function
3.00 eV  
99+
4.70 eV  
15
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility  
Corrosion, Ionization, Solubility  
Atomic
Atomic Number
65  
99+
26  
99+
Electron Configuration
[Xe] 4f9 6s2  
[Ar] 3d6 4s2  
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+
26  
99+
Number of Neutrons
94  
37
30  
99+
Number of Electrons
65  
99+
26  
99+
Radius of an Atom
  
  
Atomic Radius
177.00 pm  
19
126.00 pm  
99+
Covalent Radius
194.00 pm  
16
132.00 pm  
99+
Van der Waals Radius
221.00 pm  
27
200.00 pm  
35
Atomic Weight
158.93 amu  
99+
55.85 amu  
99+
Atomic Volume
19.20 cm3/mol  
34
7.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Gadolinium
  
Manganese
  
Next Element
Dysprosium
  
Cobalt
  
Valence Electron Potential
46.80 (-eV)  
34
67.00 (-eV)  
20
Lattice Constant
360.10 pm  
40
286.65 pm  
99+
Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, π/2  
Lattice C/A Ratio
1.58  
35
1.35  
99+
Mechanical
Density
  
  
Density At Room Temperature
8.23 g/cm3  
99+
7.87 g/cm3  
99+
Density When Liquid (at m.p.)
7.65 g/cm3  
99+
6.98 g/cm3  
99+
Tensile Strength
60.00 MPa  
35
11,000.00 MPa  
1
Viscosity
0.00  
25
0.00  
19
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
31
0.00 (Pa)  
30
Vapor Pressure at 2000 K
12.50 (Pa)  
8
36.80 (Pa)  
5
Elasticity properties
  
  
Shear Modulus
22.10 GPa  
99+
82.00 GPa  
11
Bulk Modulus
38.70 GPa  
40
170.00 GPa  
10
Young's Modulus
55.70 GPa  
37
211.00 GPa  
9
Poisson Ratio
0.26  
21
0.29  
15
Other Mechanical Properties
Ductile, Malleable  
Ductile, Malleable, Weldable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
8.23  
99+
7.20  
99+
Magnetic Ordering
Paramagnetic  
Ferromagnetic  
Permeability
0.00 H/m  
17
0.01 H/m  
1
Susceptibility
0.00  
24
200,000.00  
1
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
1.15 nΩ·m  
99+
96.10 nΩ·m  
32
Electrical Conductivity
0.01 106/cm Ω  
99+
0.10 106/cm Ω  
24
Electron Affinity
50.00 kJ/mol  
26
15.70 kJ/mol  
40
Thermal
Specific Heat
0.18 J/(kg K)  
34
0.44 J/(kg K)  
13
Molar Heat Capacity
28.91 J/mol·K  
12
25.10 J/mol·K  
99+
Thermal Conductivity
11.10 W/m·K  
99+
80.40 W/m·K  
22
Critical Temperature
1,629.00 K  
37
1,811.00 K  
29
Thermal Expansion
10.30 µm/(m·K)  
99+
11.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
330.90 kJ/mol  
99+
351.00 kJ/mol  
33
Enthalpy of Fusion
10.80 kJ/mol  
40
14.90 kJ/mol  
23
Enthalpy of Atomization
314.00 kJ/mol  
99+
414.20 kJ/mol  
24
Standard Molar Entropy
73.20 J/mol.K  
10
27.30 J/mol.K  
99+
Summary >>
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