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Mendelevium
Mendelevium

Dysprosium
Dysprosium



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Mendelevium
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Mendelevium vs Dysprosium

1 Periodic Table
1.1 Symbol
Md
Dy
1.2 Group Number
NANA
Gadolinium
0 17
1.4 Period Number
76
Lithium
2 7
1.7 Block
f block
f block
1.9 Element Family
Actinide
Lanthanide
1.10 CAS Number
74401117429916
Aluminium
7429905 54386242
2.5 Space Group Name
Not Available
P63/mmc
2.6 Space Group Number
NA194.00
Plutonium
11 229
3 Facts
3.1 Interesting Facts
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
  • Dysprosium acts stable in air at room temperature.
  • Dysprosium behaves very much like paramagnetic metal.
3.3 Sources
Bombarding Einsteinium with Helium Ions
Found in Minerals, Mining, Ores of Minerals
3.4 History
3.4.1 Who Discovered
Lawrence Berkeley National Laboratory
Lecoq de Boisbaudran
3.4.2 Discovery
In 1955
In 1886
3.5 Abundance
3.5.1 Abundance In Universe
NA2 * 10-7 %
Thallium
5E-09 0.11
3.6.6 Abundance In Sun
~-9999 %~0.0000002 %
Beryllium
1E-08 0.1
4.4.8 Abundance In Meteorites
NA0.00 %
Gold
1.7E-07 22
4.4.14 Abundance In Earth's Crust
NA0.00 %
Radium
9.9E-12 8.1
4.6.2 Abundance In Oceans
NA0.00 %
Protactinium
2E-23 1.1
4.7.3 Abundance In Humans
NANA
Radium
1E-13 1.4
5 Uses
5.1 Uses & Benefits
  • Currently known uses of Mendelevium metal are limited to research purpose only.
  • Dysprosium metal is highly reactive due to which it pure form is not as usual as its alloy.
  • Thi metals alloy is used in magnate as it is resistance to high temperature.
5.1.1 Industrial Uses
NA
NA
5.1.2 Medical Uses
NA
NA
5.1.3 Other Uses
NA
Alloys, Nuclear Research
5.2 Biological Properties
5.2.1 Toxicity
Unknown
Mildly Toxic
5.2.2 Present in Human Body
5.2.4 In Blood
0.00 Blood/mg dm-3NA
Plutonium
0 1970
5.2.14 In Bone
0.00 p.p.m.NA
Plutonium
0 170000
7 Physical
7.1 Melting Point
827.00 °C1,407.00 °C
Francium
27 3410
7.3 Boiling Point
NA2,562.00 °C
Flerovium
147 5660
7.4 Appearance
7.4.1 Physical State
Solid
Solid
7.4.2 Color
Unknown
Silvery White
7.4.3 Luster
Metallic
Metallic
7.5 Hardness
7.5.1 Mohs Hardness
NANA
Cesium
0.2 8.5
8.1.8 Brinell Hardness
NA500.00 MPa
Cesium
0.14 3490
8.3.5 Vickers Hardness
NA540.00 MPa
Palladium
121 3430
8.7 Speed of Sound
NA2,710.00 m/s
Thallium
818 16200
9.2 Optical Properties
9.2.1 Refractive Index
NANA
Mercury
1.000933 1.7229
9.2.5 Reflectivity
NANA
Molybdenum
58 97
9.6 Allotropes
9.6.1 α Allotropes
Not Available
Not Available
9.6.2 β Allotropes
Not Available
Not Available
9.6.3 γ Allotropes
Not Available
Not Available
10 Chemical
10.1 Chemical Formula
Md
Dy
10.2 Isotopes
10.2.1 Known Isotopes
1629
Tennessine
0 38
10.4 Electronegativity
10.4.1 Pauling Electronegativity
1.301.22
Francium
0.7 2.54
10.5.5 Sanderson Electronegativity
NANA
Cesium
0.22 2.56
11.2.4 Allred Rochow Electronegativity
1.201.10
Cesium
0.86 1.82
11.3.6 Mulliken-Jaffe Electronegativity
NANA
Cesium
0.62 2.48
11.4.10 Allen Electronegativity
NANA
Cesium
0.659 2.7
11.6 Electropositivity
11.6.1 Pauling Electropositivity
2.702.78
Gold
1.46 3.3
11.8 Ionization Energies
11.8.1 1st Energy Level
635.00 kJ/mol573.00 kJ/mol
Cesium
375.7 26130
11.9.1 2nd Energy Level
1,235.00 kJ/mol1,130.00 kJ/mol
Ruthenium
710.2162 28750
11.10.3 3rd Energy Level
2,470.00 kJ/mol2,200.00 kJ/mol
Osmium
1600 34230
11.15.2 4th Energy Level
3,840.00 kJ/mol3,990.00 kJ/mol
Thorium
2780 37066
13.3.1 5th Energy Level
NANA
Dubnium
4305.2 97510
13.9.3 6th Energy Level
NANA
Seaborgium
5715.8 105800
14.1.3 7th Energy level
NANA
Bohrium
7226.8 114300
14.2.3 8th Energy Level
NANA
Hassium
8857.4 125300
14.3.2 9th Energy Level
NANA
Yttrium
14110 134700
15.3.1 10th Energy Level
NANA
Strontium
17100 144300
15.10.1 11th Energy Level
NANA
Yttrium
19900 169988
16.1.1 12th Energy Level
NANA
Molybdenum
22219 189368
16.2.5 13th Energy Level
NANA
Molybdenum
26930 76015
16.9.2 14th Energy Level
NANA
Molybdenum
29196 86450
16.12.3 15th Energy Level
NANA
Manganese
41987 97510
16.13.3 16th Energy Level
NANA
Iron
47206 109480
16.18.2 17th Energy Level
NANA
Cobalt
52737 122200
17.3.1 18th Energy Level
NANA
Nickel
58570 134810
17.5.3 19th Energy Level
NANA
Copper
64702 148700
18.5.1 20th Energy Level
NANA
Molybdenum
80400 171200
19.2.3 21st Energy Level
NANA
Molybdenum
87000 179100
19.4.1 22nd Energy Level
NANA
Molybdenum
93400 184900
19.7.3 23rd Energy Level
NANA
Molybdenum
98420 198800
19.9.2 24th Energy Level
NANA
Molybdenum
104400 195200
20.2.4 25th Energy Level
NANA
Molybdenum
121900 121900
20.4.2 26th Energy Level
NANA
Molybdenum
127700 127700
20.5.2 27th Energy Level
NANA
Molybdenum
133800 133800
20.5.6 28th Energy Level
NANA
Molybdenum
139800 139800
1.1.1 29th Energy Level
NANA
Molybdenum
148100 148100
1.4.2 30th Energy Level
NANA
Molybdenum
154500 154500
1.9 Electrochemical Equivalent
3.21 g/amp-hr2.02 g/amp-hr
Beryllium
0.16812 8.3209
2.2 Electron Work Function
NANA
Cesium
2.14 5.65
2.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
3 Atomic
3.1 Atomic Number
10166
Lithium
3 117
5.5 Electron Configuration
[Rn] 5f13 7s2
[Xe] 4f9 6s2
5.7 Crystal Structure
Not Known
Hexagonal Close Packed (HCP)
5.7.1 Crystal Lattice
5.8 Atom
5.8.1 Number of Protons
10166
Lithium
3 117
6.1.2 Number of Neutrons
15796
Lithium
4 184
6.2.2 Number of Electrons
10166
Lithium
3 117
7.2 Radius of an Atom
7.2.1 Atomic Radius
NA178.00 pm
Beryllium
112 265
8.2.1 Covalent Radius
NA192.00 pm
Beryllium
96 260
8.4.1 Van der Waals Radius
246.00 pm229.00 pm
Zinc
139 348
9.3 Atomic Weight
258.00 amu162.50 amu
Lithium
6.94 294
10.2 Atomic Volume
NA19.00 cm3/mol
Manganese
1.39 71.07
11.2 Adjacent Atomic Numbers
11.2.1 Previous Element
11.2.2 Next Element
11.3 Valence Electron Potential
NA47.40 (-eV)
Francium
8 392.42
11.11 Lattice Constant
NA359.30 pm
Beryllium
228.58 891.25
12.2 Lattice Angles
NA
π/2, π/2, 2 π/3
12.3 Lattice C/A Ratio
NA1.57
Beryllium
1.567 1.886
13 Mechanical
13.1 Density
13.1.1 Density At Room Temperature
NA8.54 g/cm3
Lithium
0.534 40.7
14.4.4 Density When Liquid (at m.p.)
NA8.37 g/cm3
Lithium
0.512 20
15.6 Tensile Strength
NA120.00 MPa
Indium
2.5 11000
15.11 Viscosity
NANA
Mercury
0.001526 0.001526
15.12 Vapor Pressure
15.12.1 Vapor Pressure at 1000 K
NANA
Cerium
2.47E-11 121
15.14.3 Vapor Pressure at 2000 K
NANA
Tungsten
2.62E-10 774
15.16 Elasticity properties
15.16.1 Shear Modulus
NA24.70 GPa
Potassium
1.3 222
15.18.2 Bulk Modulus
NA40.50 GPa
Cesium
1.6 462
16.0.1 Young's Modulus
NA61.40 GPa
Cesium
1.7 528
16.2 Poisson Ratio
NA0.25
Beryllium
0.032 0.47
16.4 Other Mechanical Properties
Unknown
Sectile
17 Magnetic
17.1 Magnetic Characteristics
17.1.1 Specific Gravity
NA8.55
Lithium
0.53 4500
17.2.3 Magnetic Ordering
Unknown
Paramagnetic
17.2.4 Permeability
NANA
Bismuth
1.25643E-06 0.0063
17.2.6 Susceptibility
NANA
Bismuth
-0.000166 200000
17.3 Electrical Properties
17.3.1 Electrical Property
Unknown
Conductor
17.3.2 Resistivity
NA926.00 nΩ·m
Thallium
0.18 961
17.3.6 Electrical Conductivity
NA0.01 106/cm Ω
Plutonium
0.00666 0.63
18.6.2 Electron Affinity
NA50.00 kJ/mol
Mercury
0 222.8
19 Thermal
19.1 Specific Heat
NA0.17 J/(kg K)
Americium
0.11 3.6
19.4 Molar Heat Capacity
NA27.70 J/mol·K
Beryllium
16.443 62.7
19.6 Thermal Conductivity
NA10.70 W/m·K
Neptunium
6.3 429
20.2 Critical Temperature
NANA
Ytterbium
26.3 3223
20.3 Thermal Expansion
NA9.90 µm/(m·K)
Tungsten
4.5 97
20.4 Enthalpy
20.4.1 Enthalpy of Vaporization
NA230.00 kJ/mol
Zinc
7.32 799.1
20.4.2 Enthalpy of Fusion
NA11.05 kJ/mol
Cesium
2.1 35.23
20.4.4 Enthalpy of Atomization
NA301.00 kJ/mol
Mercury
61.5 837
20.6 Standard Molar Entropy
NA75.60 J/mol.K
Beryllium
9.5 198.1