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Dubnium
Dubnium

Europium
Europium



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Dubnium
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Europium

Dubnium Europium Comparison

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1 Periodic Table
1.1 Symbol
Db
Eu
1.2 Group Number
5NA
Gadolinium Metal
0 17
1.4 Period Number
76
Lithium Metal
2 7
2.2 Block
d block
f block
2.3 Element Family
Transition Metal
Lanthanide
2.4 CAS Number
538503547440531
Aluminium Metal
7429905 54386242
2.8 Space Group Name
Not Available
Im_ 3m
2.9 Space Group Number
NA229.00
Plutonium Metal
11 229
3 Facts
3.1 Interesting Facts
  • IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
  • In the production of Dubnium, thermal gradient chromatography is used.
Not Available
3.2 Sources
Produced by Bombarding Am243 with Ne22, Synthetically Produced
Found in Minerals, Mining, Ores of Minerals
3.3 History
3.3.1 Who Discovered
Joint Institute for Nuclear Research
Eugène-Anatole Demarçay
3.3.3 Discovery
In 1968
In 1896
3.4 Abundance
3.4.1 Abundance In Universe
NA5 * 10-8 %
Thallium Metal
5E-09 0.11
3.4.3 Abundance In Sun
~-9999 %~0.00000005 %
Beryllium Metal
1E-08 0.1
3.5.1 Abundance In Meteorites
NA0.00 %
Gold Metal
1.7E-07 22
3.7.1 Abundance In Earth's Crust
NA0.00 %
Radium Metal
9.9E-12 8.1
4.1.2 Abundance In Oceans
NA0.00 %
Protactinium Metal
2E-23 1.1
4.5.1 Abundance In Humans
NANA
Radium Metal
1E-13 1.4
5 Uses
5.1 Uses & Benefits
  • Currently known uses of Dubnium metal are limited to research purpose only.
  • Europium metals main uses is in the printing of euro banknotes. These notes glow red under UV light.
  • It is used in low energy light bulbs.
5.1.1 Industrial Uses
NA
Chemical Industry
5.1.2 Medical Uses
NA
NA
5.1.3 Other Uses
Research Purposes
Alloys
5.2 Biological Properties
5.2.1 Toxicity
Unknown
Non Toxic
5.2.2 Present in Human Body
5.2.3 In Blood
0.00 Blood/mg dm-3NA
Plutonium Metal
0 1970
5.3.2 In Bone
0.00 p.p.m.NA
Plutonium Metal
0 170000
6 Physical
6.1 Melting Point
NA822.00 °C
Francium Metal
27 3410
6.5 Boiling Point
NA1,597.00 °C
Flerovium Metal
147 5660
6.6 Appearance
6.6.1 Physical State
Solid
Solid
6.6.2 Color
Unknown
Silvery White
6.6.3 Luster
Unknown Luster
Lustrous
6.7 Hardness
6.7.1 Mohs Hardness
NANA
Cesium Metal
0.2 8.5
6.9.1 Brinell Hardness
NANA
Cesium Metal
0.14 3490
7.1.2 Vickers Hardness
NA167.00 MPa
Palladium Metal
121 3430
7.4 Speed of Sound
NANA
Thallium Metal
818 16200
7.6 Optical Properties
7.6.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
7.9.1 Reflectivity
NANA
Molybdenum Metal
58 97
8.2 Allotropes
8.2.1 α Allotropes
Not Available
Not Available
8.2.2 β Allotropes
Not Available
Not Available
8.2.3 γ Allotropes
Not Available
Not Available
9 Chemical
9.1 Chemical Formula
Db
Eu
9.2 Isotopes
9.2.1 Known Isotopes
1031
Tennessine Metal
0 38
9.5 Electronegativity
9.5.1 Pauling Electronegativity
NA1.20
Francium Metal
0.7 2.54
9.5.2 Sanderson Electronegativity
NA1.01
Cesium Metal
0.22 2.56
9.8.1 Allred Rochow Electronegativity
NANA
Cesium Metal
0.86 1.82
9.9.2 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
9.9.5 Allen Electronegativity
NANA
Cesium Metal
0.659 2.7
9.11 Electropositivity
9.11.1 Pauling Electropositivity
NANA
Gold Metal
1.46 3.3
9.12 Ionization Energies
9.12.2 1st Energy Level
664.80 kJ/mol547.10 kJ/mol
Cesium Metal
375.7 26130
9.13.1 2nd Energy Level
1,546.70 kJ/mol1,085.00 kJ/mol
Ruthenium Metal
710.2162 28750
10.1.2 3rd Energy Level
2,378.40 kJ/mol2,404.00 kJ/mol
Osmium Metal
1600 34230
10.2.1 4th Energy Level
3,298.80 kJ/mol4,120.00 kJ/mol
Thorium Metal
2780 37066
11.1.2 5th Energy Level
4,305.20 kJ/molNA
Tin
4305.2 97510
11.2.3 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
11.2.6 7th Energy level
NANA
Bohrium Metal
7226.8 114300
11.2.9 8th Energy Level
NANA
Hassium Metal
8857.4 125300
11.3.3 9th Energy Level
NANA
Yttrium Metal
14110 134700
11.3.4 10th Energy Level
NANA
Strontium Metal
17100 144300
11.3.6 11th Energy Level
NANA
Yttrium Metal
19900 169988
11.3.8 12th Energy Level
NANA
Molybdenum Metal
22219 189368
12.1.1 13th Energy Level
NANA
Molybdenum Metal
26930 76015
12.1.3 14th Energy Level
NANA
Molybdenum Metal
29196 86450
12.2.1 15th Energy Level
NANA
Manganese Metal
41987 97510
12.2.2 16th Energy Level
NANA
Iron Metal
47206 109480
13.1.1 17th Energy Level
NANA
Cobalt Metal
52737 122200
13.2.1 18th Energy Level
NANA
Nickel Metal
58570 134810
13.3.1 19th Energy Level
NANA
Copper Metal
64702 148700
13.3.2 20th Energy Level
NANA
Molybdenum Metal
80400 171200
13.4.1 21st Energy Level
NANA
Molybdenum Metal
87000 179100
13.5.1 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
13.5.2 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
13.6.1 24th Energy Level
NANA
Molybdenum Metal
104400 195200
13.7.1 25th Energy Level
NANA
Molybdenum Metal
121900 121900
13.7.2 26th Energy Level
NANA
Molybdenum Metal
127700 127700
13.7.3 27th Energy Level
NANA
Molybdenum Metal
133800 133800
13.9.1 28th Energy Level
NANA
Molybdenum Metal
139800 139800
13.9.2 29th Energy Level
NANA
Molybdenum Metal
148100 148100
13.9.3 30th Energy Level
NANA
Molybdenum Metal
154500 154500
13.10 Electrochemical Equivalent
NA1.89 g/amp-hr
Beryllium Metal
0.16812 8.3209
13.12 Electron Work Function
NA2.50 eV
Cesium Metal
2.14 5.65
13.13 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Solubility
14 Atomic
14.1 Atomic Number
10563
Lithium Metal
3 117
14.2 Electron Configuration
[Rn] 5f14 6d3 7s2
[Xe] 4f7 6s2
14.3 Crystal Structure
Body Centered Cubic (BCC)
Body Centered Cubic (BCC)
14.3.1 Crystal Lattice
14.4 Atom
14.4.1 Number of Protons
10563
Lithium Metal
3 117
14.4.2 Number of Neutrons
15789
Lithium Metal
4 184
14.5.1 Number of Electrons
10563
Lithium Metal
3 117
14.6 Radius of an Atom
14.6.1 Atomic Radius
139.00 pm180.00 pm
Beryllium Metal
112 265
14.7.1 Covalent Radius
149.00 pm198.00 pm
Beryllium Metal
96 260
14.7.2 Van der Waals Radius
NA233.00 pm
Zinc Metal
139 348
14.8 Atomic Weight
268.00 amu151.96 amu
Lithium Metal
6.94 294
14.9 Atomic Volume
NA28.90 cm3/mol
Manganese Metal
1.39 71.07
14.10 Adjacent Atomic Numbers
14.10.1 Previous Element
14.10.2 Next Element
14.11 Valence Electron Potential
NA45.60 (-eV)
Francium Metal
8 392.42
14.12 Lattice Constant
NA458.10 pm
Beryllium Metal
228.58 891.25
14.13 Lattice Angles
NA
π/2, π/2, π/2
14.14 Lattice C/A Ratio
NANA
Beryllium Metal
1.567 1.886
15 Mechanical
15.1 Density
15.1.1 Density At Room Temperature
29.30 g/cm35.26 g/cm3
Lithium Metal
0.534 40.7
15.1.2 Density When Liquid (at m.p.)
NA5.13 g/cm3
Lithium Metal
0.512 20
15.2 Tensile Strength
NA120.00 MPa
Indium Metal
2.5 11000
15.3 Viscosity
NANA
Mercury Metal
0.001526 0.001526
15.4 Vapor Pressure
15.4.1 Vapor Pressure at 1000 K
NA19.40 (Pa)
Cerium Metal
2.47E-11 121
15.4.2 Vapor Pressure at 2000 K
NANA
Tungsten Metal
2.62E-10 774
15.5 Elasticity properties
15.5.1 Shear Modulus
NA7.90 GPa
Potassium Metal
1.3 222
15.5.2 Bulk Modulus
NA8.30 GPa
Cesium Metal
1.6 462
15.5.3 Young's Modulus
NA18.20 GPa
Cesium Metal
1.7 528
15.6 Poisson Ratio
NA0.15
Beryllium Metal
0.032 0.47
15.7 Other Mechanical Properties
Unknown
Ductile
16 Magnetic
16.1 Magnetic Characteristics
16.1.1 Specific Gravity
NA5.24
Lithium Metal
0.53 4500
16.1.2 Magnetic Ordering
Unknown
Paramagnetic
16.1.3 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
16.1.4 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
16.2 Electrical Properties
16.2.1 Electrical Property
Unknown
Conductor
16.2.2 Resistivity
NA0.90 nΩ·m
Thallium Metal
0.18 961
16.2.3 Electrical Conductivity
NA0.01 106/cm Ω
Plutonium Metal
0.00666 0.63
16.2.4 Electron Affinity
NA50.00 kJ/mol
Mercury Metal
0 222.8
17 Thermal
17.1 Specific Heat
NA0.18 J/(kg K)
Americium Metal
0.11 3.6
17.2 Molar Heat Capacity
NA27.66 J/mol·K
Beryllium Metal
16.443 62.7
17.3 Thermal Conductivity
NA13.90 W/m·K
Neptunium Metal
6.3 429
17.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
17.5 Thermal Expansion
NA35.00 µm/(m·K)
Tungsten Metal
4.5 97
17.6 Enthalpy
17.6.1 Enthalpy of Vaporization
NA143.50 kJ/mol
Zinc Metal
7.32 799.1
17.6.2 Enthalpy of Fusion
NA9.21 kJ/mol
Cesium Metal
2.1 35.23
17.6.3 Enthalpy of Atomization
NA180.00 kJ/mol
Mercury Metal
61.5 837
17.7 Standard Molar Entropy
NA77.80 J/mol.K
Beryllium Metal
9.5 198.1