1 Periodic Table
1.1 Symbol
Sm
1.2 Group Number
Not Available
Rank: N/A (Overall) ▶
0
17
1.3 Period Number
1.4 Block
f block
1.5 Element Family
Lanthanide
1.6 CAS Number
7440199
Rank: 60 (Overall) ▶
7429905
54386242
1.7 Space Group Name
R_ 3m
1.8 Space Group Number
166.00
Rank: 6 (Overall) ▶
11
229
2 Facts
2.1 Interesting Facts
- 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 in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Lecoq de Boisbaudran
2.3.2 Discovery
In 1879
2.4 Abundance
2.4.1 Abundance In Universe
5 * 10-7 %
Rank: 19 (Overall) ▶
5E-09
0.11
2.4.2 Abundance In Sun
~0.0000001 %
Rank: 26 (Overall) ▶
1E-08
0.1
2.4.3 Abundance In Meteorites
0.00 %
Rank: 37 (Overall) ▶
1.7E-07
22
2.4.4 Abundance In Earth's Crust
0.00 %
Rank: 29 (Overall) ▶
9.9E-12
8.1
2.4.5 Abundance In Oceans
0.00 %
Rank: 40 (Overall) ▶
2E-23
1.1
2.4.6 Abundance In Humans
Not Available
Rank: N/A (Overall) ▶
1E-13
1.4
3 Uses
3.1 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.
3.1.1 Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
3.1.2 Medical Uses
NA
3.1.3 Other Uses
Alloys, In Nuclear Reactors
3.2 Biological Properties
3.2.1 Toxicity
Slightly Toxic
3.2.2 Present in Human Body
✔
✘
27% - Lanthanide Series Metals have it !
▶
3.2.3 In Blood
0.01 Blood/mg dm-3
Rank: 22 (Overall) ▶
0
1970
3.2.4 In Bone
Not Available
Rank: N/A (Overall) ▶
0
170000
4 Physical
4.1 Melting Point
1,072.00 °C
Rank: 41 (Overall) ▶
27
3410
4.2 Boiling Point
1,900.00 °C
Rank: 52 (Overall) ▶
147
5660
4.3 Appearance
4.3.1 Physical State
Solid
4.3.2 Color
Silvery White
4.3.3 Luster
Lustrous
4.4 Hardness
4.4.1 Mohs Hardness
Not Available
Rank: N/A (Overall) ▶
0.2
8.5
4.4.2 Brinell Hardness
441.00 MPa
Rank: 27 (Overall) ▶
0.14
3490
4.4.3 Vickers Hardness
412.00 MPa
Rank: 24 (Overall) ▶
121
3430
4.5 Speed of Sound
2,130.00 m/s
Rank: 42 (Overall) ▶
818
16200
4.6 Optical Properties
4.6.1 Refractive Index
Not Available
Rank: N/A (Overall) ▶
1.000933
1.7229
4.6.2 Reflectivity
Not Available
Rank: N/A (Overall) ▶
58
97
4.7 Allotropes
✔
✘
No - Lanthanide Series Metals has it !
▶
4.7.1 α Allotropes
Not Available
4.7.2 β Allotropes
Not Available
4.7.3 γ Allotropes
Not Available
5 Chemical
5.1 Chemical Formula
Sm
5.2 Isotopes
5.2.1 Known Isotopes
5.3 Electronegativity
5.3.1 Pauling Electronegativity
1.17
Rank: 40 (Overall) ▶
0.7
2.54
5.3.2 Sanderson Electronegativity
Not Available
Rank: N/A (Overall) ▶
0.22
2.56
5.3.3 Allred Rochow Electronegativity
1.07
Rank: 32 (Overall) ▶
0.86
1.82
5.3.4 Mulliken-Jaffe Electronegativity
Not Available
Rank: N/A (Overall) ▶
0.62
2.48
5.3.5 Allen Electronegativity
Not Available
Rank: N/A (Overall) ▶
0.659
2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
2.83
Rank: 14 (Overall) ▶
1.46
3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
544.50 kJ/mol
Rank: 72 (Overall) ▶
375.7
26130
5.5.2 2nd Energy Level
1,070.00 kJ/mol
Rank: 75 (Overall) ▶
710.2162
28750
5.5.3 3rd Energy Level
2,260.00 kJ/mol
Rank: 59 (Overall) ▶
1600
34230
5.5.4 4th Energy Level
3,990.00 kJ/mol
Rank: 37 (Overall) ▶
2780
37066
5.5.5 5th Energy Level
Not Available
Rank: N/A (Overall) ▶
4305.2
97510
5.5.6 6th Energy Level
Not Available
Rank: N/A (Overall) ▶
5715.8
105800
5.5.7 7th Energy level
Not Available
Rank: N/A (Overall) ▶
7226.8
114300
5.5.8 8th Energy Level
Not Available
Rank: N/A (Overall) ▶
8857.4
125300
5.5.9 9th Energy Level
Not Available
Rank: N/A (Overall) ▶
14110
134700
5.5.10 10th Energy Level
Not Available
Rank: N/A (Overall) ▶
17100
144300
5.5.11 11th Energy Level
Not Available
Rank: N/A (Overall) ▶
19900
169988
5.5.12 12th Energy Level
Not Available
Rank: N/A (Overall) ▶
22219
189368
5.5.13 13th Energy Level
Not Available
Rank: N/A (Overall) ▶
26930
76015
5.5.14 14th Energy Level
Not Available
Rank: N/A (Overall) ▶
29196
86450
5.5.15 15th Energy Level
Not Available
Rank: N/A (Overall) ▶
41987
97510
5.5.16 16th Energy Level
Not Available
Rank: N/A (Overall) ▶
47206
109480
5.5.17 17th Energy Level
Not Available
Rank: N/A (Overall) ▶
52737
122200
5.5.18 18th Energy Level
Not Available
Rank: N/A (Overall) ▶
58570
134810
5.5.19 19th Energy Level
Not Available
Rank: N/A (Overall) ▶
64702
148700
5.5.20 20th Energy Level
Not Available
Rank: N/A (Overall) ▶
80400
171200
5.5.21 21st Energy Level
Not Available
Rank: N/A (Overall) ▶
87000
179100
5.5.22 22nd Energy Level
Not Available
Rank: N/A (Overall) ▶
93400
184900
5.5.23 23rd Energy Level
Not Available
Rank: N/A (Overall) ▶
98420
198800
5.5.24 24th Energy Level
Not Available
Rank: N/A (Overall) ▶
104400
195200
5.5.25 25th Energy Level
Not Available
Rank: N/A (Overall) ▶
121900
121900
5.5.26 26th Energy Level
Not Available
Rank: N/A (Overall) ▶
127700
127700
5.5.27 27th Energy Level
Not Available
Rank: N/A (Overall) ▶
133800
133800
5.5.28 28th Energy Level
Not Available
Rank: N/A (Overall) ▶
139800
139800
5.5.29 29th Energy Level
Not Available
Rank: N/A (Overall) ▶
148100
148100
5.5.30 30th Energy Level
Not Available
Rank: N/A (Overall) ▶
154500
154500
5.6 Electrochemical Equivalent
1.87 g/amp-hr
Rank: 34 (Overall) ▶
0.16812
8.3209
5.7 Electron Work Function
2.70 eV
Rank: 41 (Overall) ▶
2.14
5.65
5.8 Other Chemical Properties
Ionization, Radioactive Isotopes
6 Atomic
6.1 Atomic Number
6.2 Electron Configuration
[Xe] 4f6 6s2
6.3 Crystal Structure
Rhombohedral (RHO)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
6.4.2 Number of Neutrons
6.4.3 Number of Electrons
6.5 Radius of an Atom
6.5.1 Atomic Radius
180.00 pm
Rank: 14 (Overall) ▶
112
265
6.5.2 Covalent Radius
198.00 pm
Rank: 13 (Overall) ▶
96
260
6.5.3 Van der Waals Radius
229.00 pm
Rank: 20 (Overall) ▶
139
348
6.6 Atomic Weight
150.36 amu
Rank: 48 (Overall) ▶
6.94
294
6.7 Atomic Volume
19.95 cm3/mol
Rank: 19 (Overall) ▶
1.39
71.07
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
44.80 (-eV)
Rank: 37 (Overall) ▶
8
392.42
6.10 Lattice Constant
362.10 pm
Rank: 33 (Overall) ▶
228.58
891.25
6.11 Lattice Angles
π/2, π/2, 2 π/3
6.12 Lattice C/A Ratio
Not Available
Rank: N/A (Overall) ▶
1.567
1.886
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
7.52 g/cm3
Rank: 53 (Overall) ▶
0.534
40.7
7.1.2 Density When Liquid (at m.p.)
7.16 g/cm3
Rank: 32 (Overall) ▶
0.512
20
7.2 Tensile Strength
Not Available
Rank: N/A (Overall) ▶
2.5
11000
7.3 Viscosity
Not Available
Rank: N/A (Overall) ▶
0.001526
0.001526
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
0.94 (Pa)
Rank: 9 (Overall) ▶
2.47E-11
121
7.4.2 Vapor Pressure at 2000 K
Not Available
Rank: N/A (Overall) ▶
2.62E-10
774
7.5 Elasticity properties
7.5.1 Shear Modulus
19.50 GPa
Rank: 34 (Overall) ▶
1.3
222
7.5.2 Bulk Modulus
37.80 GPa
Rank: 35 (Overall) ▶
1.6
462
7.5.3 Young's Modulus
49.70 GPa
Rank: 37 (Overall) ▶
1.7
528
7.6 Poisson Ratio
0.27
Rank: 19 (Overall) ▶
0.032
0.47
7.7 Other Mechanical Properties
NA
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
7.52
Rank: 41 (Overall) ▶
0.53
4500
8.1.2 Magnetic Ordering
Paramagnetic
8.1.3 Permeability
Not Available
Rank: N/A (Overall) ▶
1.25643E-06
0.0063
8.1.4 Susceptibility
Not Available
Rank: N/A (Overall) ▶
-0.000166
200000
8.2 Electrical Properties
8.2.1 Electrical Property
Conductor
8.2.2 Resistivity
0.94 nΩ·m
Rank: 61 (Overall) ▶
0.18
961
8.2.3 Electrical Conductivity
0.01 106/cm Ω
Rank: 58 (Overall) ▶
0.00666
0.63
8.2.4 Electron Affinity
50.00 kJ/mol
Rank: 21 (Overall) ▶
0
222.8
9 Thermal
9.1 Specific Heat
0.20 J/(kg K)
Rank: 31 (Overall) ▶
0.11
3.6
9.2 Molar Heat Capacity
29.54 J/mol·K
Rank: 7 (Overall) ▶
16.443
62.7
9.3 Thermal Conductivity
13.30 W/m·K
Rank: 58 (Overall) ▶
6.3
429
9.4 Critical Temperature
Not Available
Rank: N/A (Overall) ▶
26.3
3223
9.5 Thermal Expansion
12.70 µm/(m·K)
Rank: 30 (Overall) ▶
4.5
97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
166.40 kJ/mol
Rank: 44 (Overall) ▶
7.32
799.1
9.6.2 Enthalpy of Fusion
8.62 kJ/mol
Rank: 40 (Overall) ▶
2.1
35.23
9.6.3 Enthalpy of Atomization
209.00 kJ/mol
Rank: 43 (Overall) ▶
61.5
837
9.7 Standard Molar Entropy
69.60 J/mol.K
Rank: 15 (Overall) ▶
9.5
198.1