1 Periodic Table
1.1 Symbol
1.2 Group Number
1.5 Period Number
1.6 Block
1.7 Element Family
Lanthanide
Probably Transition
1.8 CAS Number
744060054038016
7429905
54386242
1.9 Space Group Name
1.10 Space Group Number
2 Facts
2.1 Interesting Facts
- Holmium metal is very soft and malleable.
- Holmium metal is well known for its corrosion resistivity.
Not Available
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Bombarding Bi209 with Accelerated Nuclei of Fe58, Synthetically Produced
2.3 History
2.3.1 Who Discovered
Marc Delafontaine
Gesellschaft für Schwerionenforschung
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.4.2 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
2.5.1 Abundance In Meteorites
2.5.2 Abundance In Earth's Crust
2.6.2 Abundance In Oceans
2.6.4 Abundance In Humans
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 Meitnerium metal are limited to research purpose only.
3.1.2 Industrial Uses
3.1.3 Medical Uses
3.1.5 Other Uses
Alloys, Nuclear Research
NA
3.2 Biological Properties
3.2.1 Toxicity
4.1.1 Present in Human Body
4.2.2 In Blood
NA0.00 Blood/mg dm-3
0
1970
4.2.3 In Bone
5 Physical
5.1 Melting Point
5.3 Boiling Point
5.4 Appearance
5.4.1 Physical State
5.4.2 Color
5.4.3 Luster
5.5 Hardness
5.5.1 Mohs Hardness
5.5.2 Brinell Hardness
5.5.4 Vickers Hardness
5.6 Speed of Sound
5.7 Optical Properties
5.7.1 Refractive Index
5.7.2 Reflectivity
5.9 Allotropes
5.9.1 α Allotropes
Not Available
Not Available
5.9.2 β Allotropes
Not Available
Not Available
5.9.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
6.2 Isotopes
6.2.1 Known Isotopes
6.4 Electronegativity
6.4.1 Pauling Electronegativity
6.4.3 Sanderson Electronegativity
6.4.5 Allred Rochow Electronegativity
6.4.7 Mulliken-Jaffe Electronegativity
6.4.9 Allen Electronegativity
6.5 Electropositivity
6.5.1 Pauling Electropositivity
6.6 Ionization Energies
6.6.1 1st Energy Level
581.00 kJ/mol800.80 kJ/mol
375.7
26130
6.6.3 2nd Energy Level
1,140.00 kJ/mol1,823.60 kJ/mol
710.2162
28750
6.6.5 3rd Energy Level
2,204.00 kJ/mol2,904.20 kJ/mol
1600
34230
6.6.7 4th Energy Level
4,100.00 kJ/mol3,859.40 kJ/mol
2780
37066
6.6.9 5th Energy Level
NA4,920.80 kJ/mol
4305.2
97510
6.6.11 6th Energy Level
6.6.13 7th Energy level
6.6.15 8th Energy Level
6.6.16 9th Energy Level
6.6.18 10th Energy Level
6.6.20 11th Energy Level
6.6.22 12th Energy Level
6.6.24 13th Energy Level
6.6.26 14th Energy Level
6.6.29 15th Energy Level
6.6.31 16th Energy Level
6.6.33 17th Energy Level
6.6.35 18th Energy Level
6.6.38 19th Energy Level
6.6.40 20th Energy Level
6.6.42 21st Energy Level
6.6.44 22nd Energy Level
6.6.45 23rd Energy Level
6.6.47 24th Energy Level
6.7.1 25th Energy Level
6.7.2 26th Energy Level
6.8.1 27th Energy Level
6.8.2 28th Energy Level
6.8.3 29th Energy Level
7.1.1 30th Energy Level
7.2 Electrochemical Equivalent
2.02 g/amp-hrNA
0.16812
8.3209
7.6 Electron Work Function
7.7 Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Radioactivity
8 Atomic
8.1 Atomic Number
8.2 Electron Configuration
[Xe] 4f11 6s2
[Rn] 5f14 6d7 7s2
8.3 Crystal Structure
Hexagonal Close Packed (HCP)
Face Centered Cubic (FCC)
8.3.1 Crystal Lattice
8.4 Atom
8.4.1 Number of Protons
8.4.3 Number of Neutrons
8.5.2 Number of Electrons
8.6 Radius of an Atom
8.6.1 Atomic Radius
176.00 pm122.00 pm
112
265
8.6.3 Covalent Radius
192.00 pm129.00 pm
96
260
8.6.4 Van der Waals Radius
8.8 Atomic Weight
164.93 amu278.00 amu
6.94
294
8.10 Atomic Volume
18.70 cm3/molNA
1.39
71.07
8.13 Adjacent Atomic Numbers
8.13.1 Previous Element
8.13.2 Next Element
8.14 Valence Electron Potential
8.16 Lattice Constant
357.73 pmNA
228.58
891.25
8.19 Lattice Angles
8.20 Lattice C/A Ratio
10 Mechanical
10.1 Density
10.1.1 Density At Room Temperature
8.79 g/cm337.40 g/cm3
0.534
40.7
10.1.3 Density When Liquid (at m.p.)
10.3 Tensile Strength
10.5 Viscosity
10.7 Vapor Pressure
10.7.1 Vapor Pressure at 1000 K
10.8.2 Vapor Pressure at 2000 K
10.9 Elasticity properties
10.9.1 Shear Modulus
10.10.1 Bulk Modulus
11.1.4 Young's Modulus
11.3 Poisson Ratio
11.4 Other Mechanical Properties
Ductile, Malleable, Sectile
NA
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
12.1.3 Magnetic Ordering
Paramagnetic
Paramagnetic
12.1.4 Permeability
12.1.6 Susceptibility
12.2 Electrical Properties
12.2.1 Electrical Property
12.2.2 Resistivity
13.1.1 Electrical Conductivity
0.01 106/cm ΩNA
0.00666
0.63
13.2.1 Electron Affinity
14 Thermal
14.1 Specific Heat
14.3 Molar Heat Capacity
27.15 J/mol·KNA
16.443
62.7
14.4 Thermal Conductivity
14.6 Critical Temperature
14.7 Thermal Expansion
14.9 Enthalpy
14.9.1 Enthalpy of Vaporization
241.00 kJ/molNA
7.32
799.1
14.9.2 Enthalpy of Fusion
14.10.2 Enthalpy of Atomization
14.11 Standard Molar Entropy
75.30 J/mol.KNA
9.5
198.1