×

Einsteinium
Einsteinium

Samarium
Samarium



ADD
Compare
X
Einsteinium
X
Samarium

Einsteinium Samarium Comparison

1 Periodic Table
1.1 Symbol
Es
Sm
1.2 Group Number
NANA
Gadolinium Metal
0 17
1.4 Period Number
76
Lithium Metal
2 7
1.5 Block
f block
f block
1.6 Element Family
Actinide
Lanthanide
1.7 CAS Number
74299277440199
Aluminium Metal
7429905 54386242
1.8 Space Group Name
Not Available
R_ 3m
1.9 Space Group Number
NA166.00
Plutonium Metal
11 229
2 Facts
2.1 Interesting Facts
  • Einsteinium is the transuranic element found in US.
  • Only 0.01 mg of Einsteinium was synthesized in 1961.
  • Samarium metals helps stimulating body metabolism.
  • Samarium metals was 1st observed by Jean Charles Galissard de Marignac in Dydimia in 1853.
2.2 Sources
Made by Bombarding Uranium with Neutrons
Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Lecoq de Boisbaudran
2.3.2 Discovery
In 1952
In 1879
2.4 Abundance
2.4.1 Abundance In Universe
NA5 * 10-7 %
Thallium Metal
5E-09 0.11
3.2.2 Abundance In Sun
~-9999 %~0.0000001 %
Beryllium Metal
1E-08 0.1
3.2.4 Abundance In Meteorites
NA0.00 %
Gold Metal
1.7E-07 22
3.3.4 Abundance In Earth's Crust
NA0.00 %
Radium Metal
9.9E-12 8.1
3.3.7 Abundance In Oceans
NA0.00 %
Protactinium Metal
2E-23 1.1
3.3.11 Abundance In Humans
NANA
Radium Metal
1E-13 1.4
4 Uses
4.1 Uses & Benefits
  • Currently known uses of Einsteinium 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.
4.1.1 Industrial Uses
NA
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
4.1.2 Medical Uses
NA
NA
4.1.3 Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys, In Nuclear Reactors
4.2 Biological Properties
4.2.1 Toxicity
Toxic
Slightly Toxic
4.2.2 Present in Human Body
4.2.3 In Blood
0.00 Blood/mg dm-30.01 Blood/mg dm-3
Plutonium Metal
0 1970
4.2.7 In Bone
0.00 p.p.m.NA
Plutonium Metal
0 170000
5 Physical
5.1 Melting Point
860.00 °C1,072.00 °C
Francium Metal
27 3410
5.3 Boiling Point
996.00 °C1,900.00 °C
Flerovium Metal
147 5660
5.5 Appearance
5.5.1 Physical State
Solid
Solid
5.5.2 Color
Silver
Silvery White
5.5.3 Luster
NA
Lustrous
5.7 Hardness
5.7.1 Mohs Hardness
NANA
Cesium Metal
0.2 8.5
6.1.1 Brinell Hardness
NA441.00 MPa
Cesium Metal
0.14 3490
6.1.4 Vickers Hardness
NA412.00 MPa
Palladium Metal
121 3430
6.5 Speed of Sound
NA2,130.00 m/s
Thallium Metal
818 16200
6.6 Optical Properties
6.6.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
6.6.3 Reflectivity
NANA
Molybdenum Metal
58 97
6.7 Allotropes
6.7.1 α Allotropes
Not Available
Not Available
6.7.2 β Allotropes
Not Available
Not Available
6.7.3 γ Allotropes
Not Available
Not Available
7 Chemical
7.1 Chemical Formula
Es
Sm
7.2 Isotopes
7.2.1 Known Isotopes
1630
Tennessine Metal
0 38
7.4 Electronegativity
7.4.1 Pauling Electronegativity
1.541.17
Francium Metal
0.7 2.54
7.4.4 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
7.4.7 Allred Rochow Electronegativity
1.201.07
Cesium Metal
0.86 1.82
7.5.1 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
7.6.1 Allen Electronegativity
NANA
Cesium Metal
0.659 2.7
7.9 Electropositivity
7.9.1 Pauling Electropositivity
2.702.83
Gold Metal
1.46 3.3
7.10 Ionization Energies
7.10.1 1st Energy Level
619.00 kJ/mol544.50 kJ/mol
Cesium Metal
375.7 26130
7.11.1 2nd Energy Level
1,216.00 kJ/mol1,070.00 kJ/mol
Ruthenium Metal
710.2162 28750
7.13.1 3rd Energy Level
2,334.00 kJ/mol2,260.00 kJ/mol
Osmium Metal
1600 34230
8.1.3 4th Energy Level
3,734.00 kJ/mol3,990.00 kJ/mol
Thorium Metal
2780 37066
8.1.7 5th Energy Level
NANA
Dubnium Metal
4305.2 97510
8.1.9 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
8.2.2 7th Energy level
NANA
Bohrium Metal
7226.8 114300
8.3.2 8th Energy Level
NANA
Hassium Metal
8857.4 125300
8.4.4 9th Energy Level
NANA
Yttrium Metal
14110 134700
8.4.7 10th Energy Level
NANA
Strontium Metal
17100 144300
8.5.3 11th Energy Level
NANA
Yttrium Metal
19900 169988
8.5.7 12th Energy Level
NANA
Molybdenum Metal
22219 189368
8.6.2 13th Energy Level
NANA
Molybdenum Metal
26930 76015
8.7.1 14th Energy Level
NANA
Molybdenum Metal
29196 86450
8.8.1 15th Energy Level
NANA
Manganese Metal
41987 97510
10.1.1 16th Energy Level
NANA
Iron Metal
47206 109480
10.3.1 17th Energy Level
NANA
Cobalt Metal
52737 122200
10.4.3 18th Energy Level
NANA
Nickel Metal
58570 134810
10.5.3 19th Energy Level
NANA
Copper Metal
64702 148700
10.5.4 20th Energy Level
NANA
Molybdenum Metal
80400 171200
10.5.7 21st Energy Level
NANA
Molybdenum Metal
87000 179100
10.5.8 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
10.6.2 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
10.6.3 24th Energy Level
NANA
Molybdenum Metal
104400 195200
11.1.1 25th Energy Level
NANA
Molybdenum Metal
121900 121900
11.1.3 26th Energy Level
NANA
Molybdenum Metal
127700 127700
11.2.1 27th Energy Level
NANA
Molybdenum Metal
133800 133800
11.3.1 28th Energy Level
NANA
Molybdenum Metal
139800 139800
11.4.1 29th Energy Level
NANA
Molybdenum Metal
148100 148100
11.5.1 30th Energy Level
NANA
Molybdenum Metal
154500 154500
11.7 Electrochemical Equivalent
4.74 g/amp-hr1.87 g/amp-hr
Beryllium Metal
0.16812 8.3209
11.11 Electron Work Function
NA2.70 eV
Cesium Metal
2.14 5.65
11.14 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes
12 Atomic
12.1 Atomic Number
9962
Lithium Metal
3 117
13.2 Electron Configuration
[Rn] 5f11 7s2
[Xe] 4f6 6s2
13.3 Crystal Structure
Face Centered Cubic (FCC)
Rhombohedral (RHO)
13.3.1 Crystal Lattice
13.4 Atom
13.4.1 Number of Protons
9962
Lithium Metal
3 117
13.4.4 Number of Neutrons
15388
Lithium Metal
4 184
13.4.5 Number of Electrons
9962
Lithium Metal
3 117
13.8 Radius of an Atom
13.8.1 Atomic Radius
186.00 pm180.00 pm
Beryllium Metal
112 265
13.9.2 Covalent Radius
NA198.00 pm
Beryllium Metal
96 260
13.9.4 Van der Waals Radius
NA229.00 pm
Zinc Metal
139 348
13.11 Atomic Weight
252.00 amu150.36 amu
Lithium Metal
6.94 294
13.12 Atomic Volume
NA19.95 cm3/mol
Manganese Metal
1.39 71.07
13.13 Adjacent Atomic Numbers
13.13.1 Previous Element
13.13.2 Next Element
13.14 Valence Electron Potential
NA44.80 (-eV)
Francium Metal
8 392.42
13.15 Lattice Constant
NA362.10 pm
Beryllium Metal
228.58 891.25
13.17 Lattice Angles
NA
π/2, π/2, 2 π/3
13.18 Lattice C/A Ratio
NANA
Beryllium Metal
1.567 1.886
14 Mechanical
14.1 Density
14.1.1 Density At Room Temperature
8.84 g/cm37.52 g/cm3
Lithium Metal
0.534 40.7
15.1.4 Density When Liquid (at m.p.)
NA7.16 g/cm3
Lithium Metal
0.512 20
15.2 Tensile Strength
NANA
Indium Metal
2.5 11000
15.4 Viscosity
NANA
Mercury Metal
0.001526 0.001526
15.5 Vapor Pressure
15.5.1 Vapor Pressure at 1000 K
NA0.94 (Pa)
Cerium Metal
2.47E-11 121
15.5.3 Vapor Pressure at 2000 K
NANA
Tungsten Metal
2.62E-10 774
15.6 Elasticity properties
15.6.1 Shear Modulus
NA19.50 GPa
Potassium Metal
1.3 222
16.1.1 Bulk Modulus
NA37.80 GPa
Cesium Metal
1.6 462
16.2.1 Young's Modulus
NA49.70 GPa
Cesium Metal
1.7 528
16.4 Poisson Ratio
NA0.27
Beryllium Metal
0.032 0.47
16.6 Other Mechanical Properties
NA
NA
17 Magnetic
17.1 Magnetic Characteristics
17.1.1 Specific Gravity
NA7.52
Lithium Metal
0.53 4500
17.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
17.1.3 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
17.2.1 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
17.4 Electrical Properties
17.4.1 Electrical Property
Unknown
Conductor
17.4.2 Resistivity
NA0.94 nΩ·m
Thallium Metal
0.18 961
17.4.4 Electrical Conductivity
NA0.01 106/cm Ω
Plutonium Metal
0.00666 0.63
17.4.6 Electron Affinity
NA50.00 kJ/mol
Mercury Metal
0 222.8
18 Thermal
18.1 Specific Heat
NA0.20 J/(kg K)
Americium Metal
0.11 3.6
18.3 Molar Heat Capacity
NA29.54 J/mol·K
Beryllium Metal
16.443 62.7
18.4 Thermal Conductivity
NA13.30 W/m·K
Neptunium Metal
6.3 429
18.5 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
18.6 Thermal Expansion
NA12.70 µm/(m·K)
Tungsten Metal
4.5 97
18.7 Enthalpy
18.7.1 Enthalpy of Vaporization
NA166.40 kJ/mol
Zinc Metal
7.32 799.1
18.7.2 Enthalpy of Fusion
NA8.62 kJ/mol
Cesium Metal
2.1 35.23
18.7.3 Enthalpy of Atomization
NA209.00 kJ/mol
Mercury Metal
61.5 837
18.8 Standard Molar Entropy
NA69.60 J/mol.K
Beryllium Metal
9.5 198.1