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Erbium
Erbium

Ytterbium
Ytterbium



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Erbium vs Ytterbium

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1 Periodic Table
1.1 Symbol
Er
Yb
1.2 Group Number
NANA
Gadolinium
0 17
1.3 Period Number
66
Lithium
2 7
1.4 Block
f block
f block
1.5 Element Family
Lanthanide
Lanthanide
1.6 CAS Number
74405207440644
Aluminium
7429905 54386242
1.7 Space Group Name
P63/mmc
Fm_ 3m
1.8 Space Group Number
194.00225.00
Plutonium
11 229
2 Facts
2.1 Interesting Facts
  • Erbium metal is used as alloyed with Vanadium to make it softer.
  • Recent studies shows that it is helpful for metabolism.
  • Ytterbium metal oxidizes rapidly if exposed to air.
  • Ytterbium metal can dissolve quickly in Mineral acid.
2.2 Sources
Mining
Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Carl Gustaf Mosander
Jean Charles Galissard de Marignac
2.3.2 Discovery
In 1842
In 1878
2.4 Abundance
2.4.1 Abundance In Universe
2 * 10-7 %2 * 10-7 %
Thallium
5E-09 0.11
2.4.2 Abundance In Sun
~0.0000001 %~0.0000001 %
Beryllium
1E-08 0.1
2.4.3 Abundance In Meteorites
0.00 %0.00 %
Gold
1.7E-07 22
2.4.4 Abundance In Earth's Crust
0.00 %0.00 %
Radium
9.9E-12 8.1
2.4.5 Abundance In Oceans
0.00 %0.00 %
Protactinium
2E-23 1.1
2.4.6 Abundance In Humans
NANA
Radium
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • It has a tendency to get tarnished in the open air, but when alloyed with elements like erbium, vanadium, its hardness levels decreases.
  • Its compounds like Erbium oxide is used in safety glasses of welders and metal workers.
  • Ytterbium metal is used in memory devices and tuneable laser.
  • It is also used as industrial catalyst as the other catalysts are too toxic and polluting.
3.1.1 Industrial Uses
Chemical Industry
Automobile Industry, Chemical Industry
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Alloys
Alloys
3.2 Biological Properties
3.2.1 Toxicity
Mildly Toxic
Highly Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
NANA
Plutonium
0 1970
3.2.4 In Bone
NANA
Plutonium
0 170000
4 Physical
4.1 Melting Point
1,522.00 °C824.00 °C
Francium
27 3410
4.2 Boiling Point
2,510.00 °C1,196.00 °C
Flerovium
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silvery White
Silvery White
4.3.3 Luster
Lustrous
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
NANA
Cesium
0.2 8.5
4.4.2 Brinell Hardness
814.00 MPa343.00 MPa
Cesium
0.14 3490
4.4.3 Vickers Hardness
589.00 MPa206.00 MPa
Palladium
121 3430
4.5 Speed of Sound
2,830.00 m/s1,590.00 m/s
Thallium
818 16200
4.6 Optical Properties
4.6.1 Refractive Index
NANA
Mercury
1.000933 1.7229
4.6.2 Reflectivity
NANA
Molybdenum
58 97
4.7 Allotropes
4.7.1 α Allotropes
Not Available
Not Available
4.7.2 β Allotropes
Not Available
Not Available
4.7.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
Er
Yb
5.2 Isotopes
5.2.1 Known Isotopes
3130
Tennessine
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
1.24NA
Francium
0.7 2.54
5.3.2 Sanderson Electronegativity
NANA
Cesium
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.111.06
Cesium
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
NANA
Cesium
0.62 2.48
5.3.5 Allen Electronegativity
NANA
Cesium
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
2.76NA
Gold
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
589.30 kJ/mol603.40 kJ/mol
Cesium
375.7 26130
5.5.2 2nd Energy Level
1,150.00 kJ/mol1,174.80 kJ/mol
Ruthenium
710.2162 28750
5.5.3 3rd Energy Level
2,194.00 kJ/mol2,417.00 kJ/mol
Osmium
1600 34230
5.5.4 4th Energy Level
4,120.00 kJ/mol4,203.00 kJ/mol
Thorium
2780 37066
5.5.5 5th Energy Level
NANA
Dubnium
4305.2 97510
5.5.6 6th Energy Level
NANA
Seaborgium
5715.8 105800
5.5.7 7th Energy level
NANA
Bohrium
7226.8 114300
5.5.8 8th Energy Level
NANA
Hassium
8857.4 125300
5.5.9 9th Energy Level
NANA
Yttrium
14110 134700
5.5.10 10th Energy Level
NANA
Strontium
17100 144300
5.5.11 11th Energy Level
NANA
Yttrium
19900 169988
5.5.12 12th Energy Level
NANA
Molybdenum
22219 189368
5.5.13 13th Energy Level
NANA
Molybdenum
26930 76015
5.5.14 14th Energy Level
NANA
Molybdenum
29196 86450
5.5.15 15th Energy Level
NANA
Manganese
41987 97510
5.5.16 16th Energy Level
NANA
Iron
47206 109480
5.5.17 17th Energy Level
NANA
Cobalt
52737 122200
5.5.18 18th Energy Level
NANA
Nickel
58570 134810
5.5.19 19th Energy Level
NANA
Copper
64702 148700
5.5.20 20th Energy Level
NANA
Molybdenum
80400 171200
5.5.21 21st Energy Level
NANA
Molybdenum
87000 179100
5.5.22 22nd Energy Level
NANA
Molybdenum
93400 184900
5.5.23 23rd Energy Level
NANA
Molybdenum
98420 198800
5.5.24 24th Energy Level
NANA
Molybdenum
104400 195200
5.5.25 25th Energy Level
NANA
Molybdenum
121900 121900
5.5.26 26th Energy Level
NANA
Molybdenum
127700 127700
5.5.27 27th Energy Level
NANA
Molybdenum
133800 133800
5.5.28 28th Energy Level
NANA
Molybdenum
139800 139800
5.5.29 29th Energy Level
NANA
Molybdenum
148100 148100
5.5.30 30th Energy Level
NANA
Molybdenum
154500 154500
5.6 Electrochemical Equivalent
2.08 g/amp-hr2.15 g/amp-hr
Beryllium
0.16812 8.3209
5.7 Electron Work Function
NANA
Cesium
2.14 5.65
5.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Solubility
6 Atomic
6.1 Atomic Number
6870
Lithium
3 117
6.2 Electron Configuration
[Xe] 4f12 6s2
[Xe] 4f14 6s2
6.3 Crystal Structure
Hexagonal Close Packed (HCP)
Face Centered Cubic (FCC)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
6870
Lithium
3 117
6.4.2 Number of Neutrons
99103
Lithium
4 184
6.4.3 Number of Electrons
6870
Lithium
3 117
6.5 Radius of an Atom
6.5.1 Atomic Radius
176.00 pm176.00 pm
Beryllium
112 265
6.5.2 Covalent Radius
189.00 pm187.00 pm
Beryllium
96 260
6.5.3 Van der Waals Radius
NA242.00 pm
Zinc
139 348
6.6 Atomic Weight
167.26 amu173.05 amu
Lithium
6.94 294
6.7 Atomic Volume
18.40 cm3/mol24.79 cm3/mol
Manganese
1.39 71.07
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
49.00 (-eV)50.30 (-eV)
Francium
8 392.42
6.10 Lattice Constant
355.88 pm548.47 pm
Beryllium
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
1.57NA
Beryllium
1.567 1.886
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
9.07 g/cm36.90 g/cm3
Lithium
0.534 40.7
7.1.2 Density When Liquid (at m.p.)
8.86 g/cm36.21 g/cm3
Lithium
0.512 20
7.2 Tensile Strength
NA58.00 MPa
Indium
2.5 11000
7.3 Viscosity
NANA
Mercury
0.001526 0.001526
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
0.00 (Pa)NA
Cerium
2.47E-11 121
7.4.2 Vapor Pressure at 2000 K
NANA
Tungsten
2.62E-10 774
7.5 Elasticity properties
7.5.1 Shear Modulus
28.30 GPa9.90 GPa
Potassium
1.3 222
7.5.2 Bulk Modulus
44.40 GPa30.50 GPa
Cesium
1.6 462
7.5.3 Young's Modulus
69.90 GPa23.90 GPa
Cesium
1.7 528
7.6 Poisson Ratio
0.240.21
Beryllium
0.032 0.47
7.7 Other Mechanical Properties
Malleable
Ductile, Malleable
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
9.076.97
Lithium
0.53 4500
8.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
8.1.3 Permeability
NANA
Bismuth
1.25643E-06 0.0063
8.1.4 Susceptibility
NANA
Bismuth
-0.000166 200000
8.2 Electrical Properties
8.2.1 Electrical Property
Conductor
Conductor
8.2.2 Resistivity
0.86 nΩ·m0.25 nΩ·m
Thallium
0.18 961
8.2.3 Electrical Conductivity
0.01 106/cm Ω0.04 106/cm Ω
Plutonium
0.00666 0.63
8.2.4 Electron Affinity
50.00 kJ/mol50.00 kJ/mol
Mercury
0 222.8
9 Thermal
9.1 Specific Heat
0.17 J/(kg K)0.15 J/(kg K)
Americium
0.11 3.6
9.2 Molar Heat Capacity
28.12 J/mol·K26.74 J/mol·K
Beryllium
16.443 62.7
9.3 Thermal Conductivity
14.50 W/m·K38.50 W/m·K
Neptunium
6.3 429
9.4 Critical Temperature
NA26.30 K
Mercury
26.3 3223
9.5 Thermal Expansion
12.20 µm/(m·K)26.30 µm/(m·K)
Tungsten
4.5 97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
261.00 kJ/mol128.90 kJ/mol
Zinc
7.32 799.1
9.6.2 Enthalpy of Fusion
17.20 kJ/mol7.66 kJ/mol
Cesium
2.1 35.23
9.6.3 Enthalpy of Atomization
314.00 kJ/mol180.00 kJ/mol
Mercury
61.5 837
9.7 Standard Molar Entropy
73.10 J/mol.K59.90 J/mol.K
Beryllium
9.5 198.1