Home
 Compare Metals

Samarium Seaborgium Comparison

Samarium
Seaborgium
Seaborgium Samarium comparison


Periodic Table
Symbol
Sm  
Sg  
Group Number
3  
15
6  
12
Period Number
6  
7  
Block
f block  
d block  
Element Family
Lanthanide  
Transition Metal  
CAS Number
7440199  
99+
54038812  
9
Space Group Name
R_ 3m  
-  
Space Group Number
166.00  
9
166.00  
9
Facts
Interesting Facts
  • Samarium metals helps stimulating body metabolism.
  • Samarium metals was 1st observed by Jean Charles Galissard de Marignac in Dydimia in 1853.
  
  • Seaborgium most stable isotope is Sg and it has 2.1 min of half- life.
  • And other isotopes of Seaborgium have half-lives as short as 3 ms.
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Synthetically Produced  
History
  
  
Who Discovered
Lecoq de Boisbaudran  
Lawrence Berkeley National Laboratory  
Discovery
In 1879  
In 1974  
Abundance
  
  
Abundance In Universe
0.00 %  
20
0.00 %  
40
Abundance In Sun
0.00 %  
26
-  
Abundance In Meteorites
0.00 %  
37
-  
Abundance In Earth's Crust
0.00 %  
29
-  
Abundance In Oceans
0.00 %  
40
-  
Abundance In Humans
0.00 %  
24
-  
Uses
Uses & Benefits
  • Magnets of Samarium cobalt alloy are stronger than that of Iron and hence, they are used in microwave application.
  • Samarium metal also used in optical lasers and infrared absorbing glasses and as a neutron absorber.
  
  • Currently known uses of Seaborgium metal are limited to research purpose only.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
-  
Medical Uses
-  
-  
Other Uses
Alloys, In Nuclear Reactors  
Research Purposes  
Biological Properties
  
  
Toxicity
Slightly Toxic  
-  
Present in Human Body
Yes  
No  
In Blood
0.01 Blood/mg dm-3  
22
0.00 Blood/mg dm-3  
27
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
Melting Point
1,072.00 °C  
99+
-  
Boiling Point
1,900.00 °C  
99+
0.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
-  
Luster
Lustrous  
Unknown Luster  
Hardness
  
  
Mohs Hardness
5.50  
7
6.00  
6
Brinell Hardness
441.00 MPa  
32
400.00 MPa  
34
Vickers Hardness
412.00 MPa  
40
520.00 MPa  
33
Speed of Sound
2,130.00 m/s  
99+
3,200.00 m/s  
35
Optical Properties
  
  
Refractive Index
1.80  
22
1.30  
99+
Reflectivity
65.00 %  
18
68.00 %  
15
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Sm  
Sg  
Isotopes
  
  
Known Isotopes
30  
9
9  
29
Electronegativity
  
  
Pauling Electronegativity
1.17  
99+
0.00  
99+
Sanderson Electronegativity
1.17  
33
1.90  
13
Allred Rochow Electronegativity
1.07  
33
1.30  
25
Mulliken-Jaffe Electronegativity
1.17  
40
1.30  
33
Allen Electronegativity
1.17  
99+
1.90  
8
Electropositivity
  
  
Pauling Electropositivity
2.83  
14
2.20  
39
Ionization Energies
  
  
1st Energy Level
544.50 kJ/mol  
99+
757.40 kJ/mol  
21
2nd Energy Level
1,070.00 kJ/mol  
99+
1,732.90 kJ/mol  
29
3rd Energy Level
2,260.00 kJ/mol  
99+
2,483.50 kJ/mol  
99+
4th Energy Level
3,990.00 kJ/mol  
99+
3,415.60 kJ/mol  
99+
5th Energy Level
5,445.00 kJ/mol  
99+
4,561.80 kJ/mol  
99+
6th Energy Level
5,445.00 kJ/mol  
99+
5,715.80 kJ/mol  
99+
7th Energy level
5,445.00 kJ/mol  
99+
5,700.00 kJ/mol  
99+
8th Energy Level
5,400.00 kJ/mol  
99+
5,700.00 kJ/mol  
99+
9th Energy Level
5,440.00 kJ/mol  
99+
5,710.00 kJ/mol  
99+
10th Energy Level
5,445.00 kJ/mol  
99+
6,270.00 kJ/mol  
99+
11th Energy Level
5,445.00 kJ/mol  
99+
6,600.00 kJ/mol  
39
12th Energy Level
5,440.00 kJ/mol  
99+
971.00 kJ/mol  
99+
13th Energy Level
5,445.00 kJ/mol  
99+
5,700.00 kJ/mol  
99+
14th Energy Level
5,450.00 kJ/mol  
99+
5,700.00 kJ/mol  
99+
15th Energy Level
54,450.00 kJ/mol  
99+
54,000.00 kJ/mol  
99+
16th Energy Level
54,400.00 kJ/mol  
99+
64,000.00 kJ/mol  
27
17th Energy Level
544.50 kJ/mol  
99+
579.80 kJ/mol  
99+
18th Energy Level
5,445.00 kJ/mol  
99+
3,300.00 kJ/mol  
99+
19th Energy Level
544.50 kJ/mol  
99+
579.80 kJ/mol  
99+
20th Energy Level
624.00 kJ/mol  
99+
579.00 kJ/mol  
99+
21st Energy Level
544.50 kJ/mol  
99+
6,270.00 kJ/mol  
14
22nd Energy Level
624.00 kJ/mol  
37
573.00 kJ/mol  
99+
23rd Energy Level
544.50 kJ/mol  
99+
5,790.00 kJ/mol  
22
24th Energy Level
544.50 kJ/mol  
99+
971.00 kJ/mol  
4
25th Energy Level
544.00 kJ/mol  
99+
0.00 kJ/mol  
99+
26th Energy Level
544.50 kJ/mol  
99+
579.10 kJ/mol  
99+
27th Energy Level
544.50 kJ/mol  
99+
870.00 kJ/mol  
7
28th Energy Level
544.50 kJ/mol  
99+
870.00 kJ/mol  
10
29th Energy Level
544.50 kJ/mol  
99+
761.90 kJ/mol  
21
30th Energy Level
544.00 kJ/mol  
99+
0.00 kJ/mol  
99+
Electrochemical Equivalent
1.87 g/amp-hr  
38
3.20 g/amp-hr  
14
Electron Work Function
2.70 eV  
99+
6.00 eV  
1
Other Chemical Properties
Ionization, Radioactive Isotopes  
-  
Atomic
Atomic Number
62  
99+
106  
12
Electron Configuration
[Xe] 4f6 6s2  
[Rn] 5f14 6d2 7s2  
Crystal Structure
Rhombohedral (RHO)  
Body Centered Cubic (BCC)  
Crystal Lattice
RHO-Crystal-Structure-of-Samarium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
62  
99+
106  
12
Number of Neutrons
88  
40
157  
8
Number of Electrons
62  
99+
106  
12
Radius of an Atom
  
  
Atomic Radius
180.00 pm  
16
132.00 pm  
99+
Covalent Radius
198.00 pm  
13
143.00 pm  
99+
Van der Waals Radius
229.00 pm  
25
230.00 pm  
24
Atomic Weight
150.36 amu  
99+
269.00 amu  
9
Atomic Volume
19.95 cm3/mol  
31
35.00 cm3/mol  
8
Adjacent Atomic Numbers
  
  
Previous Element
Promethium
  
Dubnium
  
Next Element
Europium
  
Bohrium
  
Valence Electron Potential
44.80 (-eV)  
38
6.10 (-eV)  
99+
Lattice Constant
362.10 pm  
37
-  
Lattice Angles
π/2, π/2, 2 π/3  
-  
Lattice C/A Ratio
1.62  
15
1.36  
99+
Mechanical
Density
  
  
Density At Room Temperature
7.52 g/cm3  
99+
35.00 g/cm3  
4
Density When Liquid (at m.p.)
7.16 g/cm3  
99+
35.00 g/cm3  
4
Tensile Strength
50.00 MPa  
38
30.00 MPa  
99+
Viscosity
0.00  
25
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.94 (Pa)  
9
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
29
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
19.50 GPa  
99+
30.00 GPa  
27
Bulk Modulus
37.80 GPa  
99+
0.00 GPa  
99+
Young's Modulus
49.70 GPa  
40
12.60 GPa  
99+
Poisson Ratio
0.27  
19
0.25  
24
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
7.52  
99+
35.00  
6
Magnetic Ordering
Paramagnetic  
-  
Permeability
0.00 H/m  
9
0.00 H/m  
7
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
Conductor  
-  
Resistivity
0.94 nΩ·m  
99+
0.38 nΩ·m  
99+
Electrical Conductivity
0.01 106/cm Ω  
99+
0.00 106/cm Ω  
99+
Electron Affinity
50.00 kJ/mol  
26
50.00 kJ/mol  
26
Thermal
Specific Heat
0.20 J/(kg K)  
32
0.27 J/(kg K)  
19
Molar Heat Capacity
29.54 J/mol·K  
9
35.00 J/mol·K  
5
Thermal Conductivity
13.30 W/m·K  
99+
0.14 W/m·K  
99+
Critical Temperature
1,345.00 K  
99+
1,200.00 K  
99+
Thermal Expansion
12.70 µm/(m·K)  
39
11.00 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
166.40 kJ/mol  
99+
585.00 kJ/mol  
10
Enthalpy of Fusion
8.62 kJ/mol  
99+
-  
Enthalpy of Atomization
209.00 kJ/mol  
99+
650.00 kJ/mol  
8
Standard Molar Entropy
69.60 J/mol.K  
15
42.70 J/mol.K  
99+
Summary >>
<< Thermal

Compare Lanthanide Series

Lanthanide Series

Lanthanide Series

» More Lanthanide Series

Compare Lanthanide Series

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