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Holmium
Holmium

Einsteinium
Einsteinium



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Holmium
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Einsteinium

Holmium Einsteinium Comparison

1 Periodic Table
1.1 Symbol
Ho
Es
1.2 Group Number
NANA
Gadolinium Metal
0 17
1.3 Period Number
67
Lithium Metal
2 7
1.4 Block
f block
f block
1.5 Element Family
Lanthanide
Actinide
1.6 CAS Number
74406007429927
Aluminium Metal
7429905 54386242
1.7 Space Group Name
P63/mmc
Not Available
1.8 Space Group Number
194.00NA
Plutonium Metal
11 229
2 Facts
2.1 Interesting Facts
  • Holmium metal is very soft and malleable.
  • Holmium metal is well known for its corrosion resistivity.
  • Einsteinium is the transuranic element found in US.
  • Only 0.01 mg of Einsteinium was synthesized in 1961.
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Made by Bombarding Uranium with Neutrons
2.3 History
2.3.1 Who Discovered
Marc Delafontaine
Lawrence Berkeley National Laboratory
2.3.2 Discovery
In 1878
In 1952
2.4 Abundance
2.4.1 Abundance In Universe
5 * 10-8 %NA
Thallium Metal
5E-09 0.11
2.4.2 Abundance In Sun
~-9999 %~-9999 %
Beryllium Metal
1E-08 0.1
2.4.3 Abundance In Meteorites
0.00 %NA
Gold Metal
1.7E-07 22
2.4.4 Abundance In Earth's Crust
0.00 %NA
Radium Metal
9.9E-12 8.1
2.4.5 Abundance In Oceans
0.00 %NA
Protactinium Metal
2E-23 1.1
2.4.6 Abundance In Humans
NANA
Radium Metal
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • Holmium metal has an ability to absorb neutrons, so this metal is used in nuclear reactors to keep the chain reactions of elements under control.
  • Alloys of Holmium are used to produce Magnet.
  • Currently known uses of Einsteinium metal are limited to research purpose only.
3.1.1 Industrial Uses
NA
NA
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Alloys, Nuclear Research
Alloys, Nuclear Research, Research Purposes
3.2 Biological Properties
3.2.1 Toxicity
Low Toxic
Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
NA0.00 Blood/mg dm-3
Plutonium Metal
0 1970
3.2.4 In Bone
NA0.00 p.p.m.
Plutonium Metal
0 170000
4 Physical
4.1 Melting Point
1,461.00 °C860.00 °C
Francium Metal
27 3410
4.2 Boiling Point
2,600.00 °C996.00 °C
Flerovium Metal
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silvery White
Silver
4.3.3 Luster
Metallic
NA
4.4 Hardness
4.4.1 Mohs Hardness
NANA
Cesium Metal
0.2 8.5
4.4.2 Brinell Hardness
746.00 MPaNA
Cesium Metal
0.14 3490
4.4.3 Vickers Hardness
481.00 MPaNA
Palladium Metal
121 3430
4.5 Speed of Sound
2,760.00 m/sNA
Thallium Metal
818 16200
4.6 Optical Properties
4.6.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
4.6.2 Reflectivity
NANA
Molybdenum Metal
58 97
4.7 Allotropes
4.7.1 α Allotropes
Not Available
Not Available
4.7.2 β Allotropes
Not Available
Not Available
4.7.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
Ho
Es
5.2 Isotopes
5.2.1 Known Isotopes
3416
Tennessine Metal
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
1.231.54
Francium Metal
0.7 2.54
5.3.2 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.101.20
Cesium Metal
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
5.3.5 Allen Electronegativity
NANA
Cesium Metal
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
2.772.70
Gold Metal
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
581.00 kJ/mol619.00 kJ/mol
Cesium Metal
375.7 26130
5.5.2 2nd Energy Level
1,140.00 kJ/mol1,216.00 kJ/mol
Ruthenium Metal
710.2162 28750
5.5.3 3rd Energy Level
2,204.00 kJ/mol2,334.00 kJ/mol
Osmium Metal
1600 34230
5.5.4 4th Energy Level
4,100.00 kJ/mol3,734.00 kJ/mol
Thorium Metal
2780 37066
5.5.5 5th Energy Level
NANA
Dubnium Metal
4305.2 97510
5.5.6 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
5.5.7 7th Energy level
NANA
Bohrium Metal
7226.8 114300
5.5.8 8th Energy Level
NANA
Hassium Metal
8857.4 125300
5.5.9 9th Energy Level
NANA
Yttrium Metal
14110 134700
5.5.10 10th Energy Level
NANA
Strontium Metal
17100 144300
5.5.11 11th Energy Level
NANA
Yttrium Metal
19900 169988
5.5.12 12th Energy Level
NANA
Molybdenum Metal
22219 189368
5.5.13 13th Energy Level
NANA
Molybdenum Metal
26930 76015
5.5.14 14th Energy Level
NANA
Molybdenum Metal
29196 86450
5.5.15 15th Energy Level
NANA
Manganese Metal
41987 97510
5.5.16 16th Energy Level
NANA
Iron Metal
47206 109480
5.5.17 17th Energy Level
NANA
Cobalt Metal
52737 122200
5.5.18 18th Energy Level
NANA
Nickel Metal
58570 134810
5.5.19 19th Energy Level
NANA
Copper Metal
64702 148700
5.5.20 20th Energy Level
NANA
Molybdenum Metal
80400 171200
5.5.21 21st Energy Level
NANA
Molybdenum Metal
87000 179100
5.5.22 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
5.5.23 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
5.5.24 24th Energy Level
NANA
Molybdenum Metal
104400 195200
5.5.25 25th Energy Level
NANA
Molybdenum Metal
121900 121900
5.5.26 26th Energy Level
NANA
Molybdenum Metal
127700 127700
5.5.27 27th Energy Level
NANA
Molybdenum Metal
133800 133800
5.5.28 28th Energy Level
NANA
Molybdenum Metal
139800 139800
5.5.29 29th Energy Level
NANA
Molybdenum Metal
148100 148100
5.5.30 30th Energy Level
NANA
Molybdenum Metal
154500 154500
5.6 Electrochemical Equivalent
2.02 g/amp-hr4.74 g/amp-hr
Beryllium Metal
0.16812 8.3209
5.7 Electron Work Function
NANA
Cesium Metal
2.14 5.65
5.8 Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Radioactivity
6 Atomic
6.1 Atomic Number
6799
Lithium Metal
3 117
6.2 Electron Configuration
[Xe] 4f11 6s2
[Rn] 5f11 7s2
6.3 Crystal Structure
Hexagonal Close Packed (HCP)
Face Centered Cubic (FCC)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
6799
Lithium Metal
3 117
6.4.2 Number of Neutrons
98153
Lithium Metal
4 184
6.4.3 Number of Electrons
6799
Lithium Metal
3 117
6.5 Radius of an Atom
6.5.1 Atomic Radius
176.00 pm186.00 pm
Beryllium Metal
112 265
6.5.2 Covalent Radius
192.00 pmNA
Beryllium Metal
96 260
6.5.3 Van der Waals Radius
216.00 pmNA
Zinc Metal
139 348
6.6 Atomic Weight
164.93 amu252.00 amu
Lithium Metal
6.94 294
6.7 Atomic Volume
18.70 cm3/molNA
Manganese Metal
1.39 71.07
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
47.90 (-eV)NA
Francium Metal
8 392.42
6.10 Lattice Constant
357.73 pmNA
Beryllium Metal
228.58 891.25
6.11 Lattice Angles
π/2, π/2, 2 π/3
NA
6.12 Lattice C/A Ratio
1.57NA
Beryllium Metal
1.567 1.886
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
8.79 g/cm38.84 g/cm3
Lithium Metal
0.534 40.7
7.1.2 Density When Liquid (at m.p.)
8.34 g/cm3NA
Lithium Metal
0.512 20
7.2 Tensile Strength
NANA
Indium Metal
2.5 11000
7.3 Viscosity
NANA
Mercury Metal
0.001526 0.001526
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
0.00 (Pa)NA
Cerium Metal
2.47E-11 121
7.4.2 Vapor Pressure at 2000 K
NANA
Tungsten Metal
2.62E-10 774
7.5 Elasticity properties
7.5.1 Shear Modulus
26.30 GPaNA
Potassium Metal
1.3 222
7.5.2 Bulk Modulus
40.20 GPaNA
Cesium Metal
1.6 462
7.5.3 Young's Modulus
64.80 GPaNA
Cesium Metal
1.7 528
7.6 Poisson Ratio
0.23NA
Beryllium Metal
0.032 0.47
7.7 Other Mechanical Properties
Ductile, Malleable, Sectile
NA
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
8.80NA
Lithium Metal
0.53 4500
8.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
8.1.3 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
8.1.4 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
8.2 Electrical Properties
8.2.1 Electrical Property
Conductor
Unknown
8.2.2 Resistivity
814.00 nΩ·mNA
Thallium Metal
0.18 961
8.2.3 Electrical Conductivity
0.01 106/cm ΩNA
Plutonium Metal
0.00666 0.63
8.2.4 Electron Affinity
50.00 kJ/molNA
Mercury Metal
0 222.8
9 Thermal
9.1 Specific Heat
0.16 J/(kg K)NA
Americium Metal
0.11 3.6
9.2 Molar Heat Capacity
27.15 J/mol·KNA
Beryllium Metal
16.443 62.7
9.3 Thermal Conductivity
16.20 W/m·KNA
Neptunium Metal
6.3 429
9.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
9.5 Thermal Expansion
11.20 µm/(m·K)NA
Tungsten Metal
4.5 97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
241.00 kJ/molNA
Zinc Metal
7.32 799.1
9.6.2 Enthalpy of Fusion
11.76 kJ/molNA
Cesium Metal
2.1 35.23
9.6.3 Enthalpy of Atomization
301.00 kJ/molNA
Mercury Metal
61.5 837
9.7 Standard Molar Entropy
75.30 J/mol.KNA
Beryllium Metal
9.5 198.1