1 Periodic Table
1.1 Symbol
Ho
1.2 Group Number
1.3 Period Number
2.3 Block
f block
2.4 Element Family
Lanthanide
2.5 CAS Number
2.7 Space Group Name
P63/mmc
2.8 Space Group Number
3 Facts
3.1 Interesting Facts
- Holmium metal is very soft and malleable.
- Holmium metal is well known for its corrosion resistivity.
3.2 Sources
Found in Minerals, Mining, Ores of Minerals
3.3 History
3.3.1 Who Discovered
Marc Delafontaine
3.3.2 Discovery
In 1878
3.4 Abundance
3.4.1 Abundance In Universe
3.5.1 Abundance In Sun
3.6.2 Abundance In Meteorites
3.6.3 Abundance In Earth's Crust
3.6.5 Abundance In Oceans
3.6.7 Abundance In Humans
4 Uses
4.1 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.
4.1.1 Industrial Uses
NA
4.1.2 Medical Uses
NA
4.1.3 Other Uses
Alloys, Nuclear Research
4.2 Biological Properties
4.2.1 Toxicity
Low Toxic
4.2.2 Present in Human Body
✔
✘
27% - Lanthanide Series Metals have it !
▶
4.2.3 In Blood
4.2.4 In Bone
5 Physical
5.1 Melting Point
5.2 Boiling Point
5.3 Appearance
5.3.1 Physical State
Solid
5.3.2 Color
Silvery White
5.3.3 Luster
Metallic
5.4 Hardness
5.4.1 Mohs Hardness
5.4.2 Brinell Hardness
5.4.3 Vickers Hardness
5.5 Speed of Sound
5.6 Optical Properties
5.6.1 Refractive Index
5.6.2 Reflectivity
5.7 Allotropes
✔
✘
No - Lanthanide Series Metals has it !
▶
5.7.1 α Allotropes
Not Available
5.7.2 β Allotropes
Not Available
5.7.3 γ Allotropes
Not Available
6 Chemical
6.1 Chemical Formula
Ho
6.2 Isotopes
6.2.1 Known Isotopes
6.3 Electronegativity
6.3.1 Pauling Electronegativity
6.3.2 Sanderson Electronegativity
6.3.3 Allred Rochow Electronegativity
6.3.4 Mulliken-Jaffe Electronegativity
6.3.5 Allen Electronegativity
6.4 Electropositivity
6.4.1 Pauling Electropositivity
6.5 Ionization Energies
6.5.1 1st Energy Level
6.5.2 2nd Energy Level
6.5.3 3rd Energy Level
6.5.4 4th Energy Level
6.5.5 5th Energy Level
6.5.6 6th Energy Level
6.5.7 7th Energy level
6.5.8 8th Energy Level
6.5.9 9th Energy Level
6.5.10 10th Energy Level
6.5.11 11th Energy Level
6.5.12 12th Energy Level
6.5.13 13th Energy Level
6.5.14 14th Energy Level
6.5.15 15th Energy Level
6.5.16 16th Energy Level
6.5.17 17th Energy Level
6.5.18 18th Energy Level
6.5.19 19th Energy Level
6.5.20 20th Energy Level
6.5.21 21st Energy Level
6.5.22 22nd Energy Level
6.5.23 23rd Energy Level
6.5.24 24th Energy Level
6.5.25 25th Energy Level
6.5.26 26th Energy Level
6.5.27 27th Energy Level
6.5.28 28th Energy Level
6.5.29 29th Energy Level
6.5.30 30th Energy Level
6.6 Electrochemical Equivalent
6.7 Electron Work Function
6.8 Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
7 Atomic
7.1 Atomic Number
7.2 Electron Configuration
[Xe] 4f11 6s2
7.3 Crystal Structure
Hexagonal Close Packed (HCP)
7.3.1 Crystal Lattice
7.4 Atom
7.4.1 Number of Protons
7.4.2 Number of Neutrons
7.4.3 Number of Electrons
7.5 Radius of an Atom
7.5.1 Atomic Radius
7.5.2 Covalent Radius
7.5.3 Van der Waals Radius
7.6 Atomic Weight
7.7 Atomic Volume
7.8 Adjacent Atomic Numbers
7.8.1 Previous Element
7.8.2 Next Element
7.9 Valence Electron Potential
7.10 Lattice Constant
7.11 Lattice Angles
π/2, π/2, 2 π/3
7.12 Lattice C/A Ratio
8 Mechanical
8.1 Density
8.1.1 Density At Room Temperature
8.1.2 Density When Liquid (at m.p.)
8.2 Tensile Strength
8.3 Viscosity
8.4 Vapor Pressure
8.4.1 Vapor Pressure at 1000 K
8.4.2 Vapor Pressure at 2000 K
8.5 Elasticity properties
8.5.1 Shear Modulus
8.5.2 Bulk Modulus
8.5.3 Young's Modulus
8.6 Poisson Ratio
8.7 Other Mechanical Properties
Ductile, Malleable, Sectile
9 Magnetic
9.1 Magnetic Characteristics
9.1.1 Specific Gravity
9.1.2 Magnetic Ordering
Paramagnetic
9.1.3 Permeability
9.1.4 Susceptibility
9.2 Electrical Properties
9.2.1 Electrical Property
Conductor
9.2.2 Resistivity
9.2.3 Electrical Conductivity
9.2.4 Electron Affinity
10 Thermal
10.1 Specific Heat
10.2 Molar Heat Capacity
10.3 Thermal Conductivity
10.4 Critical Temperature
10.5 Thermal Expansion
10.6 Enthalpy
10.6.1 Enthalpy of Vaporization
1.2.1 Enthalpy of Fusion
1.3.1 Enthalpy of Atomization
1.7 Standard Molar Entropy