×

Holmium
Holmium

Manganese
Manganese



ADD
Compare
X
Holmium
X
Manganese

Holmium vs Manganese

Add ⊕
1 Periodic Table
1.1 Symbol
Ho
Mn
1.2 Group Number
NA7
Gadolinium
0 17
1.3 Period Number
64
Lithium
2 7
1.4 Block
f block
d block
1.5 Element Family
Lanthanide
Transition Metal
1.6 CAS Number
74406007439965
Aluminium
7429905 54386242
1.7 Space Group Name
P63/mmc
I_ 43m
1.8 Space Group Number
194.00217.00
Plutonium
11 229
3 Facts
3.1 Interesting Facts
  • Holmium metal is very soft and malleable.
  • Holmium metal is well known for its corrosion resistivity.
  • Manganese is an essential trace element in all forms of life.
  • Manganese metal oxidizes very easily, but it does not fuse that easily.
3.2 Sources
Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
3.3 History
3.3.1 Who Discovered
Marc Delafontaine
Johann Gottlieb Gahn
3.3.3 Discovery
In 1878
In 1774
3.4 Abundance
3.4.1 Abundance In Universe
5 * 10-8 %8 * 10-4 %
Thallium
5E-09 0.11
3.5.4 Abundance In Sun
~-9999 %~0.001 %
Beryllium
1E-08 0.1
3.5.6 Abundance In Meteorites
0.00 %0.27 %
Gold
1.7E-07 22
4.1.1 Abundance In Earth's Crust
0.00 %0.11 %
Radium
9.9E-12 8.1
4.2.1 Abundance In Oceans
0.00 %0.00 %
Protactinium
2E-23 1.1
4.2.2 Abundance In Humans
NA0.00 %
Radium
1E-13 1.4
5 Uses
5.1 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.
  • This metal is very brittle hence it mostly not used as a pure metal, but its alloys are very useful
  • Its alloy Manganese steel is extremely strong and used in railway tracks, safes, prison bars and riffle barrels.
5.1.1 Industrial Uses
NA
Automobile Industry, Electrical Industry, Electronic Industry
5.1.2 Medical Uses
NA
NA
5.1.3 Other Uses
Alloys, Nuclear Research
Alloys
5.2 Biological Properties
5.2.1 Toxicity
Low Toxic
Toxic
5.2.2 Present in Human Body
5.2.3 In Blood
NA0.08 Blood/mg dm-3
Plutonium
0 1970
5.2.5 In Bone
NA100.00 p.p.m.
Plutonium
0 170000
6 Physical
6.1 Melting Point
1,461.00 °C1,245.00 °C
Francium
27 3410
6.2 Boiling Point
2,600.00 °C1,962.00 °C
Flerovium
147 5660
6.4 Appearance
6.4.1 Physical State
Solid
Solid
6.4.2 Color
Silvery White
Silver
6.4.3 Luster
Metallic
Metallic
6.5 Hardness
6.5.1 Mohs Hardness
NA6.00
Cesium
0.2 8.5
6.6.2 Brinell Hardness
746.00 MPa196.00 MPa
Cesium
0.14 3490
7.2.2 Vickers Hardness
481.00 MPaNA
Palladium
121 3430
7.3 Speed of Sound
2,760.00 m/s5,150.00 m/s
Thallium
818 16200
7.5 Optical Properties
7.5.1 Refractive Index
NANA
Mercury
1.000933 1.7229
7.5.3 Reflectivity
NANA
Molybdenum
58 97
7.6 Allotropes
7.6.1 α Allotropes
Not Available
Not Available
7.6.2 β Allotropes
Not Available
Not Available
7.6.3 γ Allotropes
Not Available
Not Available
8 Chemical
8.1 Chemical Formula
Ho
Mn
8.2 Isotopes
8.2.1 Known Isotopes
3421
Tennessine
0 38
8.3 Electronegativity
8.3.1 Pauling Electronegativity
1.231.55
Francium
0.7 2.54
8.3.3 Sanderson Electronegativity
NA2.20
Cesium
0.22 2.56
8.3.5 Allred Rochow Electronegativity
1.101.60
Cesium
0.86 1.82
8.4.2 Mulliken-Jaffe Electronegativity
NANA
Cesium
0.62 2.48
8.5.2 Allen Electronegativity
NA1.75
Cesium
0.659 2.7
8.6 Electropositivity
8.6.1 Pauling Electropositivity
2.772.45
Gold
1.46 3.3
8.7 Ionization Energies
8.7.1 1st Energy Level
581.00 kJ/mol717.30 kJ/mol
Cesium
375.7 26130
8.7.3 2nd Energy Level
1,140.00 kJ/mol1,509.00 kJ/mol
Ruthenium
710.2162 28750
8.7.4 3rd Energy Level
2,204.00 kJ/mol3,248.00 kJ/mol
Osmium
1600 34230
8.7.6 4th Energy Level
4,100.00 kJ/mol4,940.00 kJ/mol
Thorium
2780 37066
8.7.8 5th Energy Level
NA6,990.00 kJ/mol
Dubnium
4305.2 97510
8.7.10 6th Energy Level
NA9,220.00 kJ/mol
Seaborgium
5715.8 105800
8.7.12 7th Energy level
NA11,500.00 kJ/mol
Bohrium
7226.8 114300
8.7.14 8th Energy Level
NA18,770.00 kJ/mol
Hassium
8857.4 125300
8.7.16 9th Energy Level
NA21,400.00 kJ/mol
Yttrium
14110 134700
8.7.17 10th Energy Level
NA23,960.00 kJ/mol
Strontium
17100 144300
8.7.19 11th Energy Level
NA27,590.00 kJ/mol
Yttrium
19900 169988
8.7.21 12th Energy Level
NA30,330.00 kJ/mol
Molybdenum
22219 189368
8.7.23 13th Energy Level
NA33,150.00 kJ/mol
Molybdenum
26930 76015
8.7.25 14th Energy Level
NA38,880.00 kJ/mol
Molybdenum
29196 86450
8.7.27 15th Energy Level
NA41,987.00 kJ/mol
Copper
41987 97510
8.7.28 16th Energy Level
NA109,480.00 kJ/mol
Iron
47206 109480
8.7.30 17th Energy Level
NA118,100.00 kJ/mol
Cobalt
52737 122200
8.7.32 18th Energy Level
NA127,100.00 kJ/mol
Nickel
58570 134810
8.7.34 19th Energy Level
NA138,600.00 kJ/mol
Copper
64702 148700
8.7.35 20th Energy Level
NA148,500.00 kJ/mol
Molybdenum
80400 171200
8.7.37 21st Energy Level
NA158,600.00 kJ/mol
Molybdenum
87000 179100
8.7.39 22nd Energy Level
NA172,500.00 kJ/mol
Molybdenum
93400 184900
8.7.41 23rd Energy Level
NA181,380.00 kJ/mol
Molybdenum
98420 198800
8.7.42 24th Energy Level
NANA
Molybdenum
104400 195200
8.7.44 25th Energy Level
NANA
Molybdenum
121900 121900
8.7.46 26th Energy Level
NANA
Molybdenum
127700 127700
8.7.48 27th Energy Level
NANA
Molybdenum
133800 133800
8.7.50 28th Energy Level
NANA
Molybdenum
139800 139800
8.7.52 29th Energy Level
NANA
Molybdenum
148100 148100
8.7.54 30th Energy Level
NANA
Molybdenum
154500 154500
8.8 Electrochemical Equivalent
2.02 g/amp-hr0.29 g/amp-hr
Beryllium
0.16812 8.3209
8.9 Electron Work Function
NA4.10 eV
Cesium
2.14 5.65
8.10 Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes
9 Atomic
9.1 Atomic Number
6725
Lithium
3 117
9.3 Electron Configuration
[Xe] 4f11 6s2
[Ar] 3d5 4s2
9.4 Crystal Structure
Hexagonal Close Packed (HCP)
Body Centered Cubic (BCC)
9.4.1 Crystal Lattice
9.5 Atom
9.5.1 Number of Protons
6725
Lithium
3 117
9.6.1 Number of Neutrons
9830
Lithium
4 184
10.1.1 Number of Electrons
6725
Lithium
3 117
10.5 Radius of an Atom
10.5.1 Atomic Radius
176.00 pm127.00 pm
Beryllium
112 265
10.5.3 Covalent Radius
192.00 pm139.00 pm
Beryllium
96 260
10.5.4 Van der Waals Radius
216.00 pm200.00 pm
Zinc
139 348
10.6 Atomic Weight
164.93 amu54.94 amu
Lithium
6.94 294
10.8 Atomic Volume
18.70 cm3/mol1.39 cm3/mol
Palladium
1.39 71.07
10.9 Adjacent Atomic Numbers
10.9.1 Previous Element
10.9.2 Next Element
10.10 Valence Electron Potential
47.90 (-eV)220.00 (-eV)
Francium
8 392.42
10.11 Lattice Constant
357.73 pm891.25 pm
Beryllium
228.58 891.25
10.13 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
10.14 Lattice C/A Ratio
1.57NA
Beryllium
1.567 1.886
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
8.79 g/cm37.21 g/cm3
Lithium
0.534 40.7
11.2.1 Density When Liquid (at m.p.)
8.34 g/cm35.95 g/cm3
Lithium
0.512 20
11.5 Tensile Strength
NANA
Indium
2.5 11000
11.7 Viscosity
NANA
Mercury
0.001526 0.001526
11.8 Vapor Pressure
11.8.1 Vapor Pressure at 1000 K
0.00 (Pa)0.00 (Pa)
Cerium
2.47E-11 121
11.10.1 Vapor Pressure at 2000 K
NANA
Tungsten
2.62E-10 774
12.2 Elasticity properties
12.2.1 Shear Modulus
26.30 GPaNA
Potassium
1.3 222
12.2.2 Bulk Modulus
40.20 GPa120.00 GPa
Cesium
1.6 462
12.2.4 Young's Modulus
64.80 GPa198.00 GPa
Cesium
1.7 528
12.3 Poisson Ratio
0.23NA
Beryllium
0.032 0.47
12.4 Other Mechanical Properties
Ductile, Malleable, Sectile
NA
13 Magnetic
13.1 Magnetic Characteristics
13.2.1 Specific Gravity
8.807.21
Lithium
0.53 4500
13.2.2 Magnetic Ordering
Paramagnetic
Paramagnetic
13.2.3 Permeability
NANA
Bismuth
1.25643E-06 0.0063
13.2.4 Susceptibility
NANA
Bismuth
-0.000166 200000
13.4 Electrical Properties
13.4.1 Electrical Property
Conductor
Conductor
13.4.2 Resistivity
814.00 nΩ·m1.44 nΩ·m
Thallium
0.18 961
13.5.2 Electrical Conductivity
0.01 106/cm Ω0.01 106/cm Ω
Plutonium
0.00666 0.63
13.5.3 Electron Affinity
50.00 kJ/mol0.00 kJ/mol
Mercury
0 222.8
14 Thermal
14.1 Specific Heat
0.16 J/(kg K)0.48 J/(kg K)
Americium
0.11 3.6
14.2 Molar Heat Capacity
27.15 J/mol·K26.32 J/mol·K
Beryllium
16.443 62.7
14.4 Thermal Conductivity
16.20 W/m·K7.81 W/m·K
Neptunium
6.3 429
14.5 Critical Temperature
NANA
Ytterbium
26.3 3223
14.6 Thermal Expansion
11.20 µm/(m·K)21.70 µm/(m·K)
Tungsten
4.5 97
14.7 Enthalpy
14.7.1 Enthalpy of Vaporization
241.00 kJ/mol219.70 kJ/mol
Zinc
7.32 799.1
14.7.2 Enthalpy of Fusion
11.76 kJ/mol14.64 kJ/mol
Cesium
2.1 35.23
14.7.4 Enthalpy of Atomization
301.00 kJ/mol280.30 kJ/mol
Mercury
61.5 837
14.8 Standard Molar Entropy
75.30 J/mol.K32.00 J/mol.K
Beryllium
9.5 198.1