Home

Transition Metals + -

Actinide Metals + -

Lanthanide Metals + -

Post-Transition Metals + -

Alkaline Earth Metals + -

Compare Metals


Terbium vs Magnesium


Magnesium vs Terbium


Periodic Table

Symbol
Tb   
Mg   

Group Number
Not Available   
2   
16

Period Number
6   
3   

Block
f block   
s block   

Element Family
Lanthanide   
Alkaline Earth   

CAS Number
7440279   
99+
7439954   
99+

Space Group Name
P63/mmc   
P63/mmc   

Space Group Number
194.00   
5
194.00   
5

Facts

Interesting Facts
  • At times Terbium metal acts same as Calcium.
  • Terbium metal closely similar to Lanthanum metal.
  
  • Magnesium ions are present in every chlorophyll of every green plant .
  • Controlling Magnesium fire by pouring water on it will result in explosions.
  

Sources
Found in Minerals, Found with Other Rare Earth Metals, Mining, Ores of Minerals   
By Electrolysis Process, In Ocean, Mining   

History
  
  

Who Discovered
Carl Gustaf Mosander   
Joseph Black   

Discovery
In 1842   
In 1755   

Abundance
  
  

Abundance In Universe
5 * 10-8 %   
27
6 * 10-2 %   
2

Abundance In Sun
~0.00000001 %   
29
~0.07 %   
2

Abundance In Meteorites
0.00 %   
99+
12.00 %   
2

Abundance In Earth's Crust
0.00 %   
40
2.90 %   
4

Abundance In Oceans
0.00 %   
99+
0.13 %   
2

Abundance In Humans
Not Available   
0.03 %   
4

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.
  
  • Magnesium aluminum alloy improves the mechanical strength and welding characteristics and hence it is used in aeroplane and car manufacturing.
  • It is also used to remove sulfur from the molten iron and steel.
  

Industrial Uses
Electronic Industry   
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Pharmaceutical Industry   

Medical Uses
NA   
NA   

Other Uses
Alloys   
Surgical Instruments Manufacturing   

Biological Properties
  
  

Toxicity
Low Toxic   
Non Toxic   

Present in Human Body
No   
Yes   

In Blood
Not Available   
37.80 Blood/mg dm-3   
5

In Bone
Not Available   
1,800.00 p.p.m.   
4

Physical Properties

Melting Point
1,356.00 °C   
33
650.00 °C   
99+

Boiling Point
3,123.00 °C   
29
1,107.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Gray   

Luster
Metallic   
NA   

Hardness
  
  

Mohs Hardness
Not Available   
2.50   
14

Brinell Hardness
677.00 MPa   
17
260.00 MPa   
36

Vickers Hardness
863.00 MPa   
13
Not Available   

Speed of Sound
2,620.00 m/s   
35
4,940.00 m/s   
11

Optical Properties
  
  

Reflectivity
Not Available   
74.00 %   
7

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   
Mg   

Isotopes
  
  

Known Isotopes
26   
13
15   
24

Electronegativity
  
  

Pauling Electronegativity
Not Available   
1.31   
31

Sanderson Electronegativity
Not Available   
1.32   
18

Allred Rochow Electronegativity
1.10   
30
1.23   
25

Mulliken-Jaffe Electronegativity
Not Available   
1.37   
16

Allen Electronegativity
Not Available   
1.29   
35

Electropositivity
  
  

Pauling Electropositivity
Not Available   
2.69   
23

Ionization Energies
  
  

1st Energy Level
603.40 kJ/mol   
99+
737.70 kJ/mol   
24

2nd Energy Level
1,174.80 kJ/mol   
99+
1,450.70 kJ/mol   
99+

3rd Energy Level
2,417.00 kJ/mol   
99+
7,732.70 kJ/mol   
5

4th Energy Level
4,203.00 kJ/mol   
31
10,542.50 kJ/mol   
4

5th Energy Level
Not Available   
13,630.00 kJ/mol   
3

6th Energy Level
Not Available   
18,020.00 kJ/mol   
3

7th Energy level
Not Available   
21,711.00 kJ/mol   
3

8th Energy Level
Not Available   
25,661.00 kJ/mol   
3

9th Energy Level
Not Available   
31,653.00 kJ/mol   
3

10th Energy Level
Not Available   
35,458.00 kJ/mol   
5

11th Energy Level
Not Available   
169,988.00 kJ/mol   
1

12th Energy Level
Not Available   
189,368.00 kJ/mol   
1

Electrochemical Equivalent
1.98 g/amp-hr   
31
0.45 g/amp-hr   
99+

Electron Work Function
3.00 eV   
36
3.66 eV   
29

Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Corrosion, Highly Inflammable, Ionization, Solubility   

Atomic Properties

Atomic Number
65   
99+
12   
99+

Electron Configuration
[Xe] 4f9 6s2   
[Ne] 3s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
HCP-Crystal-Structure-of-Terbium.jpg#100   
HCP-Crystal-Structure-of-Magnesium.jpg#100   

Atom
  
  

Number of Protons
65   
99+
12   
99+

Number of Neutrons
94   
36
12   
99+

Number of Electrons
65   
99+
12   
99+

Radius of an Atom
  
  

Atomic Radius
177.00 pm   
17
160.00 pm   
27

Covalent Radius
194.00 pm   
16
141.00 pm   
99+

Van der Waals Radius
221.00 pm   
22
173.00 pm   
37

Atomic Weight
158.93 amu   
99+
24.31 amu   
99+

Atomic Volume
19.20 cm3/mol   
22
13.97 cm3/mol   
37

Adjacent Atomic Numbers
  
  

Previous Element
Gadolinium
  
Sodium
  

Next Element
Dysprosium
  
Aluminium
  

Valence Electron Potential
46.80 (-eV)   
33
40.00 (-eV)   
99+

Lattice Constant
360.10 pm   
36
320.94 pm   
99+

Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
1.58   
13
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
8.23 g/cm3   
99+
1.74 g/cm3   
99+

Density When Liquid (at m.p.)
7.65 g/cm3   
30
1.58 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
Not Available   

Vapor Pressure at 2000 K
12.50 (Pa)   
8
Not Available   

Elasticity properties
  
  

Shear Modulus
22.10 GPa   
32
17.00 GPa   
37

Bulk Modulus
38.70 GPa   
33
45.00 GPa   
25

Young's Modulus
55.70 GPa   
34
45.00 GPa   
39

Poisson Ratio
0.26   
21
0.29   
15

Other Mechanical Properties
Ductile, Malleable   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
8.23   
39
1.74   
99+

Magnetic Ordering
Paramagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
1.15 nΩ·m   
99+
43.90 nΩ·m   
99+

Electrical Conductivity
0.01 106/cm Ω   
99+
0.23 106/cm Ω   
7

Electron Affinity
50.00 kJ/mol   
21
0.00 kJ/mol   
40

Thermal Properties

Specific Heat
0.18 J/(kg K)   
33
1.02 J/(kg K)   
4

Molar Heat Capacity
28.91 J/mol·K   
9
24.87 J/mol·K   
99+

Thermal Conductivity
11.10 W/m·K   
99+
156.00 W/m·K   
8

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
10.30 µm/(m·K)   
38
24.80 µm/(m·K)   
15

Enthalpy
  
  

Enthalpy of Vaporization
330.90 kJ/mol   
26
128.70 kJ/mol   
99+

Enthalpy of Fusion
10.80 kJ/mol   
34
8.95 kJ/mol   
39

Enthalpy of Atomization
314.00 kJ/mol   
33
148.50 kJ/mol   
99+

Standard Molar Entropy
73.20 J/mol.K   
10
32.70 J/mol.K   
99+

Periodic Table >>
<< All

Compare Lanthanide Series

Lanthanide Metals

Lanthanide Metals

» More Lanthanide Metals

Compare Lanthanide Series

» More Compare Lanthanide Series