1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
Lanthanide
Transition Metal
1.6 CAS Number
74406007439896
7429905
54386242
1.7 Space Group Name
1.8 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.
- Iron is not always magnetic in nature, its allotrope are ferromagnetic and the B allotrope is nonmagnetic.
- The blood consists Iron in hemoglobin molecules to transfer Oxygen in the body.
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Earth's crust, Found in Minerals
2.3 History
2.3.1 Who Discovered
Marc Delafontaine
Unknown
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
5 * 10-8 %1.1 * 10-1 %
5E-09
0.11
2.4.2 Abundance In Sun
2.4.3 Abundance In Meteorites
2.4.4 Abundance In Earth's Crust
2.4.5 Abundance In Oceans
2.4.6 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.
- Iron metal alloy steel is used in the application of civil engineering and manufacturing.
- Alloys of iron with nickel, vanadium, chromium, tungsten and manganese have very useful properties.
3.1.1 Industrial Uses
NA
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
3.1.2 Medical Uses
NA
Pharmaceutical Industry, Surgical Instruments Manufacturing
3.1.3 Other Uses
Alloys, Nuclear Research
Alloys, Sculptures, Statues
3.2 Biological Properties
3.2.1 Toxicity
3.2.2 Present in Human Body
3.2.3 In Blood
NA447.00 Blood/mg dm-3
0
1970
3.2.4 In Bone
4 Physical
4.1 Melting Point
1,461.00 °C1,535.00 °C
27
3410
4.2 Boiling Point
2,600.00 °C2,750.00 °C
147
5660
4.3 Appearance
4.3.1 Physical State
4.3.2 Color
4.3.3 Luster
4.4 Hardness
4.4.1 Mohs Hardness
4.4.2 Brinell Hardness
746.00 MPa200.00 MPa
0.14
3490
4.4.3 Vickers Hardness
481.00 MPa608.00 MPa
121
3430
4.5 Speed of Sound
2,760.00 m/s5,120.00 m/s
818
16200
4.6 Optical Properties
4.6.1 Refractive Index
4.6.2 Reflectivity
4.7 Allotropes
4.7.1 α Allotropes
Not Available
Ferrite (alpha Iron)
4.7.2 β Allotropes
4.7.3 γ Allotropes
5 Chemical
5.1 Chemical Formula
5.2 Isotopes
5.2.1 Known Isotopes
5.3 Electronegativity
5.3.1 Pauling Electronegativity
5.3.2 Sanderson Electronegativity
5.3.3 Allred Rochow Electronegativity
5.3.4 Mulliken-Jaffe Electronegativity
5.3.5 Allen Electronegativity
5.4 Electropositivity
5.4.1 Pauling Electropositivity
5.5 Ionization Energies
5.5.1 1st Energy Level
581.00 kJ/mol762.50 kJ/mol
375.7
26130
5.5.2 2nd Energy Level
1,140.00 kJ/mol1,561.90 kJ/mol
710.2162
28750
5.5.3 3rd Energy Level
2,204.00 kJ/mol2,957.00 kJ/mol
1600
34230
5.5.4 4th Energy Level
4,100.00 kJ/mol5,290.00 kJ/mol
2780
37066
5.5.5 5th Energy Level
NA7,240.00 kJ/mol
4305.2
97510
5.5.6 6th Energy Level
NA9,560.00 kJ/mol
5715.8
105800
5.5.7 7th Energy level
NA12,060.00 kJ/mol
7226.8
114300
5.5.8 8th Energy Level
NA14,580.00 kJ/mol
8857.4
125300
5.5.9 9th Energy Level
NA22,540.00 kJ/mol
14110
134700
5.5.10 10th Energy Level
NA25,290.00 kJ/mol
17100
144300
5.5.11 11th Energy Level
NA28,000.00 kJ/mol
19900
169988
5.5.12 12th Energy Level
NA31,920.00 kJ/mol
22219
189368
5.5.13 13th Energy Level
NA34,830.00 kJ/mol
26930
76015
5.5.14 14th Energy Level
NA37,840.00 kJ/mol
29196
86450
5.5.15 15th Energy Level
NA44,100.00 kJ/mol
41987
97510
5.5.16 16th Energy Level
NA47,206.00 kJ/mol
47206
109480
5.5.17 17th Energy Level
NA122,200.00 kJ/mol
52737
122200
5.5.18 18th Energy Level
NA131,000.00 kJ/mol
58570
134810
5.5.19 19th Energy Level
NA140,500.00 kJ/mol
64702
148700
5.5.20 20th Energy Level
NA152,600.00 kJ/mol
80400
171200
5.5.21 21st Energy Level
NA163,000.00 kJ/mol
87000
179100
5.5.22 22nd Energy Level
NA173,600.00 kJ/mol
93400
184900
5.5.23 23rd Energy Level
NA188,100.00 kJ/mol
98420
198800
5.5.24 24th Energy Level
NA195,200.00 kJ/mol
104400
195200
5.5.25 25th Energy Level
5.5.26 26th Energy Level
5.5.27 27th Energy Level
5.5.28 28th Energy Level
5.5.29 29th Energy Level
5.5.30 30th Energy Level
5.6 Electrochemical Equivalent
2.02 g/amp-hr0.69 g/amp-hr
0.16812
8.3209
5.7 Electron Work Function
5.8 Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Corrosion, Ionization, Solubility
6 Atomic
6.1 Atomic Number
6.2 Electron Configuration
[Xe] 4f11 6s2
[Ar] 3d6 4s2
6.3 Crystal Structure
Hexagonal Close Packed (HCP)
Body Centered Cubic (BCC)
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
176.00 pm126.00 pm
112
265
6.5.2 Covalent Radius
192.00 pm132.00 pm
96
260
6.5.3 Van der Waals Radius
216.00 pm200.00 pm
139
348
6.6 Atomic Weight
164.93 amu55.85 amu
6.94
294
6.7 Atomic Volume
18.70 cm3/mol7.10 cm3/mol
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)67.00 (-eV)
8
392.42
6.10 Lattice Constant
357.73 pm286.65 pm
228.58
891.25
6.11 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
6.12 Lattice C/A Ratio
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
8.79 g/cm37.87 g/cm3
0.534
40.7
7.1.2 Density When Liquid (at m.p.)
8.34 g/cm36.98 g/cm3
0.512
20
7.2 Tensile Strength
NA11,000.00 MPa
2.5
11000
7.3 Viscosity
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
0.00 (Pa)0.00 (Pa)
2.47E-11
121
7.4.2 Vapor Pressure at 2000 K
NA36.80 (Pa)
2.62E-10
774
7.5 Elasticity properties
7.5.1 Shear Modulus
26.30 GPa82.00 GPa
1.3
222
7.5.2 Bulk Modulus
40.20 GPa170.00 GPa
1.6
462
7.5.3 Young's Modulus
64.80 GPa211.00 GPa
1.7
528
7.6 Poisson Ratio
7.7 Other Mechanical Properties
Ductile, Malleable, Sectile
Ductile, Malleable, Weldable
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
8.1.2 Magnetic Ordering
Paramagnetic
Ferromagnetic
8.1.3 Permeability
NA6.3 * 10-3 H/m
1.25643E-06
0.0063
8.1.4 Susceptibility
NA2,00,000.00
-0.000166
200000
8.2 Electrical Properties
8.2.1 Electrical Property
8.2.2 Resistivity
814.00 nΩ·m96.10 nΩ·m
0.18
961
8.2.3 Electrical Conductivity
0.01 106/cm Ω0.10 106/cm Ω
0.00666
0.63
8.2.4 Electron Affinity
50.00 kJ/mol15.70 kJ/mol
0
222.8
9 Thermal
9.1 Specific Heat
0.16 J/(kg K)0.44 J/(kg K)
0.11
3.6
9.2 Molar Heat Capacity
27.15 J/mol·K25.10 J/mol·K
16.443
62.7
9.3 Thermal Conductivity
16.20 W/m·K80.40 W/m·K
6.3
429
9.4 Critical Temperature
9.5 Thermal Expansion
11.20 µm/(m·K)11.80 µm/(m·K)
4.5
97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
241.00 kJ/mol351.00 kJ/mol
7.32
799.1
9.6.2 Enthalpy of Fusion
11.76 kJ/mol14.90 kJ/mol
2.1
35.23
9.6.3 Enthalpy of Atomization
301.00 kJ/mol414.20 kJ/mol
61.5
837
9.7 Standard Molar Entropy
75.30 J/mol.K27.30 J/mol.K
9.5
198.1