×

Osmium
Osmium

Samarium
Samarium



ADD
Compare
X
Osmium
X
Samarium

Osmium Samarium Comparison

Add ⊕
1 Periodic Table
1.1 Symbol
Os
Sm
1.2 Group Number
8NA
Gadolinium Metal
0 17
1.3 Period Number
66
Lithium Metal
2 7
1.4 Block
d block
f block
1.5 Element Family
Transition Metal
Lanthanide
1.6 CAS Number
74400427440199
Aluminium Metal
7429905 54386242
1.7 Space Group Name
P63/mmc
R_ 3m
1.8 Space Group Number
194.00166.00
Plutonium Metal
11 229
2 Facts
2.1 Interesting Facts
  • Osmium metal does not oxidize in air unless it is heated.
  • But if it heated den it forms Osmium Tetroxide, which is highly toxic.
  • Samarium metals helps stimulating body metabolism.
  • Samarium metals was 1st observed by Jean Charles Galissard de Marignac in Dydimia in 1853.
2.2 Sources
Found As a By-product, Found in Minerals, Mining
Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Smithson Tennant
Lecoq de Boisbaudran
2.3.2 Discovery
In 1803
In 1879
2.4 Abundance
2.4.1 Abundance In Universe
3 * 10-7 %5 * 10-7 %
Thallium Metal
5E-09 0.11
2.4.3 Abundance In Sun
~0.0000002 %~0.0000001 %
Beryllium Metal
1E-08 0.1
2.4.5 Abundance In Meteorites
0.00 %0.00 %
Gold Metal
1.7E-07 22
2.4.7 Abundance In Earth's Crust
0.00 %0.00 %
Radium Metal
9.9E-12 8.1
2.4.10 Abundance In Oceans
NA0.00 %
Protactinium Metal
2E-23 1.1
2.4.11 Abundance In Humans
NANA
Radium Metal
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • Its has very limited uses and its alloys are very hard and are used in the manufacturing of pen tips, pivots, needles and electrical contacts.
  • It is also used as industrial catalyst to speed up the chemical reaction.
  • 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.
3.1.1 Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
3.1.3 Medical Uses
NA
NA
3.1.4 Other Uses
Alloys
Alloys, In Nuclear Reactors
3.2 Biological Properties
3.2.1 Toxicity
Highly Toxic
Slightly Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
NA0.01 Blood/mg dm-3
Plutonium Metal
0 1970
3.2.5 In Bone
NANA
Plutonium Metal
0 170000
4 Physical
4.1 Melting Point
3,045.00 °C1,072.00 °C
Francium Metal
27 3410
4.2 Boiling Point
5,027.00 °C1,900.00 °C
Flerovium Metal
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silvery Bluish-Gray
Silvery White
4.3.3 Luster
Metallic
Lustrous
4.4 Hardness
4.4.1 Mohs Hardness
7.00NA
Cesium Metal
0.2 8.5
4.4.4 Brinell Hardness
3,490.00 MPa441.00 MPa
Cesium Metal
0.14 3490
4.4.6 Vickers Hardness
NA412.00 MPa
Palladium Metal
121 3430
4.6 Speed of Sound
4,940.00 m/s2,130.00 m/s
Thallium Metal
818 16200
4.8 Optical Properties
4.8.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
4.8.2 Reflectivity
NANA
Molybdenum Metal
58 97
5.2 Allotropes
5.2.1 α Allotropes
Not Available
Not Available
5.2.2 β Allotropes
Not Available
Not Available
5.2.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
Os
Sm
6.2 Isotopes
6.2.1 Known Isotopes
3530
Tennessine Metal
0 38
6.6 Electronegativity
6.6.1 Pauling Electronegativity
2.201.17
Francium Metal
0.7 2.54
6.6.2 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
6.6.4 Allred Rochow Electronegativity
1.521.07
Cesium Metal
0.86 1.82
6.6.6 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
6.6.7 Allen Electronegativity
1.65NA
Cesium Metal
0.659 2.7
6.8 Electropositivity
6.8.1 Pauling Electropositivity
1.802.83
Gold Metal
1.46 3.3
6.9 Ionization Energies
6.9.1 1st Energy Level
840.00 kJ/mol544.50 kJ/mol
Cesium Metal
375.7 26130
6.9.3 2nd Energy Level
1,309.80 kJ/mol1,070.00 kJ/mol
Ruthenium Metal
710.2162 28750
6.10.1 3rd Energy Level
1,600.00 kJ/mol2,260.00 kJ/mol
Tin
1600 34230
6.10.2 4th Energy Level
NA3,990.00 kJ/mol
Thorium Metal
2780 37066
6.11.1 5th Energy Level
NANA
Dubnium Metal
4305.2 97510
6.13.1 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
6.13.2 7th Energy level
NANA
Bohrium Metal
7226.8 114300
6.14.1 8th Energy Level
NANA
Hassium Metal
8857.4 125300
6.16.1 9th Energy Level
NANA
Yttrium Metal
14110 134700
7.1.2 10th Energy Level
NANA
Strontium Metal
17100 144300
7.1.3 11th Energy Level
NANA
Yttrium Metal
19900 169988
7.1.5 12th Energy Level
NANA
Molybdenum Metal
22219 189368
7.2.1 13th Energy Level
NANA
Molybdenum Metal
26930 76015
7.3.1 14th Energy Level
NANA
Molybdenum Metal
29196 86450
7.4.2 15th Energy Level
NANA
Manganese Metal
41987 97510
7.4.4 16th Energy Level
NANA
Iron Metal
47206 109480
7.4.5 17th Energy Level
NANA
Cobalt Metal
52737 122200
7.5.2 18th Energy Level
NANA
Nickel Metal
58570 134810
7.5.4 19th Energy Level
NANA
Copper Metal
64702 148700
7.5.5 20th Energy Level
NANA
Molybdenum Metal
80400 171200
7.5.7 21st Energy Level
NANA
Molybdenum Metal
87000 179100
7.5.8 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
7.6.1 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
7.6.2 24th Energy Level
NANA
Molybdenum Metal
104400 195200
8.1.2 25th Energy Level
NANA
Molybdenum Metal
121900 121900
8.1.5 26th Energy Level
NANA
Molybdenum Metal
127700 127700
8.1.7 27th Energy Level
NANA
Molybdenum Metal
133800 133800
8.1.8 28th Energy Level
NANA
Molybdenum Metal
139800 139800
8.2.3 29th Energy Level
NANA
Molybdenum Metal
148100 148100
8.2.4 30th Energy Level
NANA
Molybdenum Metal
154500 154500
8.3 Electrochemical Equivalent
1.77 g/amp-hr1.87 g/amp-hr
Beryllium Metal
0.16812 8.3209
8.4 Electron Work Function
4.83 eV2.70 eV
Cesium Metal
2.14 5.65
8.5 Other Chemical Properties
Chemical Stability, Ionization, Solubility
Ionization, Radioactive Isotopes
9 Atomic
9.1 Atomic Number
7662
Lithium Metal
3 117
10.2 Electron Configuration
[Xe] 4f14 5d6 6s2
[Xe] 4f6 6s2
10.3 Crystal Structure
Hexagonal Close Packed (HCP)
Rhombohedral (RHO)
10.3.1 Crystal Lattice
10.4 Atom
10.4.1 Number of Protons
7662
Lithium Metal
3 117
10.5.1 Number of Neutrons
11488
Lithium Metal
4 184
10.6.1 Number of Electrons
7662
Lithium Metal
3 117
10.8 Radius of an Atom
10.8.1 Atomic Radius
133.80 pm180.00 pm
Beryllium Metal
112 265
10.9.1 Covalent Radius
NA198.00 pm
Beryllium Metal
96 260
10.9.2 Van der Waals Radius
216.00 pm229.00 pm
Zinc Metal
139 348
10.11 Atomic Weight
190.23 amu150.36 amu
Lithium Metal
6.94 294
10.12 Atomic Volume
8.49 cm3/mol19.95 cm3/mol
Manganese Metal
1.39 71.07
10.13 Adjacent Atomic Numbers
10.13.1 Previous Element
10.13.2 Next Element
10.14 Valence Electron Potential
91.40 (-eV)44.80 (-eV)
Francium Metal
8 392.42
10.15 Lattice Constant
273.44 pm362.10 pm
Beryllium Metal
228.58 891.25
10.17 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
10.18 Lattice C/A Ratio
1.58NA
Beryllium Metal
1.567 1.886
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
22.59 g/cm37.52 g/cm3
Lithium Metal
0.534 40.7
11.1.2 Density When Liquid (at m.p.)
20.00 g/cm37.16 g/cm3
Lithium Metal
0.512 20
11.2 Tensile Strength
1,000.00 MPaNA
Indium Metal
2.5 11000
11.3 Viscosity
NANA
Mercury Metal
0.001526 0.001526
11.4 Vapor Pressure
11.4.1 Vapor Pressure at 1000 K
NA0.94 (Pa)
Cerium Metal
2.47E-11 121
11.4.2 Vapor Pressure at 2000 K
0.00 (Pa)NA
Tungsten Metal
2.62E-10 774
11.5 Elasticity properties
11.5.1 Shear Modulus
222.00 GPa19.50 GPa
Potassium Metal
1.3 222
11.5.2 Bulk Modulus
462.00 GPa37.80 GPa
Cesium Metal
1.6 462
11.5.3 Young's Modulus
NA49.70 GPa
Cesium Metal
1.7 528
11.6 Poisson Ratio
0.250.27
Beryllium Metal
0.032 0.47
11.7 Other Mechanical Properties
Ductile
NA
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
22.577.52
Lithium Metal
0.53 4500
12.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
12.1.3 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
12.1.4 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
12.2 Electrical Properties
12.2.1 Electrical Property
Conductor
Conductor
12.2.2 Resistivity
81.20 nΩ·m0.94 nΩ·m
Thallium Metal
0.18 961
12.2.3 Electrical Conductivity
0.11 106/cm Ω0.01 106/cm Ω
Plutonium Metal
0.00666 0.63
12.2.4 Electron Affinity
106.10 kJ/mol50.00 kJ/mol
Mercury Metal
0 222.8
13 Thermal
13.1 Specific Heat
0.13 J/(kg K)0.20 J/(kg K)
Americium Metal
0.11 3.6
13.2 Molar Heat Capacity
24.70 J/mol·K29.54 J/mol·K
Beryllium Metal
16.443 62.7
13.3 Thermal Conductivity
87.60 W/m·K13.30 W/m·K
Neptunium Metal
6.3 429
13.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
13.5 Thermal Expansion
5.10 µm/(m·K)12.70 µm/(m·K)
Tungsten Metal
4.5 97
13.6 Enthalpy
13.6.1 Enthalpy of Vaporization
627.60 kJ/mol166.40 kJ/mol
Zinc Metal
7.32 799.1
13.6.2 Enthalpy of Fusion
29.30 kJ/mol8.62 kJ/mol
Cesium Metal
2.1 35.23
1.2.2 Enthalpy of Atomization
669.00 kJ/mol209.00 kJ/mol
Mercury Metal
61.5 837
1.3 Standard Molar Entropy
32.60 J/mol.K69.60 J/mol.K
Beryllium Metal
9.5 198.1