1 Periodic Table
1.1 Symbol
1.2 Group Number
1.6 Period Number
1.8 Block
1.9 Element Family
Transition Metal
Lanthanide
1.1 CAS Number
540371487440199
7429905
54386242
1.4 Space Group Name
1.5 Space Group Number
2 Facts
2.1 Interesting Facts
- Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
- Samarium metals helps stimulating body metabolism.
- Samarium metals was 1st observed by Jean Charles Galissard de Marignac in Dydimia in 1853.
2.3 Sources
Found in Minerals, Mining, Synthetically Produced
Found in Minerals, Mining, Ores of Minerals
2.4 History
2.4.1 Who Discovered
Gesellschaft für Schwerionenforschung
Lecoq de Boisbaudran
2.5.1 Discovery
2.6 Abundance
2.7.1 Abundance In Universe
3.6.1 Abundance In Sun
~-9999 %~0.0000001 %
1E-08
0.1
3.8.3 Abundance In Meteorites
4.4.4 Abundance In Earth's Crust
7.2.4 Abundance In Oceans
7.3.3 Abundance In Humans
9 Uses
9.1 Uses & Benefits
- Currently known uses of Bohrium metal are limited to research purpose only.
- 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.
9.1.1 Industrial Uses
NA
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
9.1.2 Medical Uses
9.1.3 Other Uses
Research Purposes
Alloys, In Nuclear Reactors
9.2 Biological Properties
9.2.1 Toxicity
9.2.2 Present in Human Body
9.2.3 In Blood
0.00 Blood/mg dm-30.01 Blood/mg dm-3
0
1970
9.5.2 In Bone
10 Physical
10.1 Melting Point
10.3 Boiling Point
12.3 Appearance
12.3.1 Physical State
12.3.2 Color
12.3.3 Luster
12.4 Hardness
12.4.1 Mohs Hardness
13.2.3 Brinell Hardness
13.5.4 Vickers Hardness
13.6 Speed of Sound
13.11 Optical Properties
13.11.1 Refractive Index
13.11.4 Reflectivity
13.12 Allotropes
13.12.1 α Allotropes
Not Available
Not Available
13.12.2 β Allotropes
Not Available
Not Available
13.12.3 γ Allotropes
Not Available
Not Available
14 Chemical
14.1 Chemical Formula
14.2 Isotopes
14.2.1 Known Isotopes
14.3 Electronegativity
14.3.1 Pauling Electronegativity
14.4.5 Sanderson Electronegativity
14.5.6 Allred Rochow Electronegativity
15.2.4 Mulliken-Jaffe Electronegativity
15.3.2 Allen Electronegativity
15.4 Electropositivity
15.4.1 Pauling Electropositivity
15.5 Ionization Energies
15.5.1 1st Energy Level
742.90 kJ/mol544.50 kJ/mol
375.7
26130
15.5.6 2nd Energy Level
1,688.50 kJ/mol1,070.00 kJ/mol
710.2162
28750
15.5.10 3rd Energy Level
2,566.50 kJ/mol2,260.00 kJ/mol
1600
34230
15.5.18 4th Energy Level
3,598.90 kJ/mol3,990.00 kJ/mol
2780
37066
15.6.4 5th Energy Level
4,727.80 kJ/molNA
4305.2
97510
15.8.3 6th Energy Level
5,991.70 kJ/molNA
5715.8
105800
15.9.3 7th Energy level
7,226.80 kJ/molNA
7226.8
114300
16.1.2 8th Energy Level
16.4.2 9th Energy Level
16.4.6 10th Energy Level
16.4.12 11th Energy Level
16.5.10 12th Energy Level
16.5.23 13th Energy Level
16.7.4 14th Energy Level
17.2.1 15th Energy Level
17.6.3 16th Energy Level
17.9.1 17th Energy Level
18.1.3 18th Energy Level
18.6.3 19th Energy Level
18.8.2 20th Energy Level
19.1.3 21st Energy Level
19.2.3 22nd Energy Level
19.3.1 23rd Energy Level
19.3.6 24th Energy Level
19.5.2 25th Energy Level
19.8.1 26th Energy Level
19.12.1 27th Energy Level
20.3.1 28th Energy Level
21.4.2 29th Energy Level
21.6.2 30th Energy Level
22.2 Electrochemical Equivalent
NA1.87 g/amp-hr
0.16812
8.3209
22.9 Electron Work Function
22.12 Other Chemical Properties
Ionization, Radioactive Isotopes
Ionization, Radioactive Isotopes
23 Atomic
23.1 Atomic Number
23.7 Electron Configuration
[Rn] 5f14 6d5 7s2
[Xe] 4f6 6s2
23.8 Crystal Structure
Hexagonal Close Packed (HCP)
Rhombohedral (RHO)
23.8.1 Crystal Lattice
23.9 Atom
23.9.1 Number of Protons
24.3.1 Number of Neutrons
27.1.6 Number of Electrons
27.6 Radius of an Atom
27.6.1 Atomic Radius
128.00 pm180.00 pm
112
265
27.8.2 Covalent Radius
141.00 pm198.00 pm
96
260
27.8.7 Van der Waals Radius
29.2 Atomic Weight
270.00 amu150.36 amu
6.94
294
29.7 Atomic Volume
NA19.95 cm3/mol
1.39
71.07
31.3 Adjacent Atomic Numbers
31.3.1 Previous Element
31.3.2 Next Element
31.4 Valence Electron Potential
31.7 Lattice Constant
NA362.10 pm
228.58
891.25
31.11 Lattice Angles
31.12 Lattice C/A Ratio
32 Mechanical
32.1 Density
32.1.1 Density At Room Temperature
37.10 g/cm37.52 g/cm3
0.534
40.7
32.3.2 Density When Liquid (at m.p.)
33.3 Tensile Strength
33.7 Viscosity
33.9 Vapor Pressure
33.9.1 Vapor Pressure at 1000 K
33.10.1 Vapor Pressure at 2000 K
33.12 Elasticity properties
33.12.1 Shear Modulus
33.13.2 Bulk Modulus
33.13.3 Young's Modulus
33.14 Poisson Ratio
33.15 Other Mechanical Properties
34 Magnetic
34.1 Magnetic Characteristics
34.1.1 Specific Gravity
34.1.2 Magnetic Ordering
34.1.3 Permeability
34.2.1 Susceptibility
34.3 Electrical Properties
34.3.1 Electrical Property
34.3.2 Resistivity
34.3.3 Electrical Conductivity
NA0.01 106/cm Ω
0.00666
0.63
34.3.4 Electron Affinity
35 Thermal
35.1 Specific Heat
35.2 Molar Heat Capacity
NA29.54 J/mol·K
16.443
62.7
35.3 Thermal Conductivity
35.4 Critical Temperature
35.5 Thermal Expansion
35.6 Enthalpy
35.6.1 Enthalpy of Vaporization
NA166.40 kJ/mol
7.32
799.1
35.6.2 Enthalpy of Fusion
35.6.3 Enthalpy of Atomization
35.7 Standard Molar Entropy
NA69.60 J/mol.K
9.5
198.1