Home
X
Transition Metals
+
-
Copper
Silver
Gold
Actinide Metals
+
-
Californium
Plutonium
Thorium
Lanthanide Metals
+
-
Cerium
Erbium
Gadolinium
Post-Transition Metals
+
-
Bismuth
Lead
Aluminium
Alkaline Earth Metals
+
-
Beryllium
Calcium
Magnesium
☰
Compare Metals
Transition Metals
Actinide Metals
Lanthanide Metals
Post-Transition Metals
Alkaline Earth Metals
Alkali Metals
MORE!
Erbium Properties
f
Erbium
Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
Properties
All
Physical
0
Melting Point
1,522.00 °C 28
Boiling Point
2,510.00 °C 44
Hardness
0
Mohs Hardness
Not Available 0
Brinell Hardness
814.00 MPa 11
Vickers Hardness
589.00 MPa 19
Optical Properties
0
Refractive Index
Not Available 0
Reflectivity
Not Available 0
Speed of Sound
2,830.00 m/s 28
Allotropes
No 0
α Allotropes
Not Available 0
β Allotropes
Not Available 0
γ Allotropes
Not Available 0
Chemical
0
Chemical Formula
Er 0
Isotopes
0
Known Isotopes
31 8
Electronegativity
0
Pauling Electronegativity
1.24 36
Sanderson Electronegativity
Not Available 0
Allred Rochow Electronegativity
1.11 29
Mulliken-Jaffe Electronegativity
Not Available 0
Allen Electronegativity
Not Available 0
Electropositivity
0
Pauling Electropositivity
2.76 18
Ionization Energies
0
1st Energy Level
589.30 kJ/mol 59
2nd Energy Level
1,150.00 kJ/mol 68
3rd Energy Level
2,194.00 kJ/mol 65
Electrochemical Equivalent
2.08 g/amp-hr 28
Electron Work Function
Not Available 0
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility 0
Mechanical
0
Density
0
Density At Room Temperature
9.07 g/cm
3
42
Density When Liquid (at m.p.)
8.86 g/cm3 23
Vapor Pressure
0
Vapor Pressure at 1000 K
0.00 (Pa) 20
Vapor Pressure at 2000 K
Not Available 0
Tensile Strength
Not Available 0
Viscosity
Not Available 0
Elasticity properties
0
Shear Modulus
28.30 GPa 25
Bulk Modulus
44.40 GPa 27
Young's Modulus
69.90 GPa 29
Poisson Ratio
0.24 28
Other Mechanical Properties
Malleable 0
Periodic Table
0
Symbol
Er 0
Group Number
Not Available 0
Period Number
6 2
Block
f block 0
Element Family
Lanthanide 0
Atomic
0
Atomic Number
68 48
Atomic Weight
167.26 amu 43
Atomic Volume
18.40 cm3/mol 25
Electron Configuration
[Xe] 4f
12
6s
2
0
Valence Electron Potential
49.00 (-eV) 29
Atom
0
Number of Protons
68 47
Number of Neutrons
99 33
Number of Electrons
68 47
Crystal Structure
Hexagonal Close Packed (HCP) 0
Crystal Lattice
HCP-Crystal-Structure-of-Erbium.jpg#100 0
Radius of an Atom
0
Atomic Radius
176.00 pm 18
Covalent Radius
189.00 pm 19
Van der Waals Radius
Not Available 0
Lattice Constant
355.88 pm 39
Lattice Angles
π/2, π/2, 2 π/3 0
Lattice C/A Ratio
1.57 17
Adjacent Atomic Numbers
0
Next Element
75 0
Previous Element
79 0
Magnetic
0
Electrical Properties
0
Resistivity
0.86 nΩ·m 63
Electrical Conductivity
0.01 10
6
/cm Ω 53
Electron Affinity
50.00 kJ/mol 21
Electrical Property
Conductor 0
Magnetic Characteristics
0
Specific Gravity
9.07 32
Magnetic Ordering
Paramagnetic 0
Permeability
Not Available 0
Susceptibility
Not Available 0
Thermal
0
Specific Heat
0.17 J/(kg K) 34
Thermal Conductivity
14.50 W/m·K 55
Critical Temperature
Not Available 0
Molar Heat Capacity
28.12 J/mol·K 11
Thermal Expansion
12.20 µm/(m·K) 31
Standard Molar Entropy
73.10 J/mol.K 11
Enthalpy
0
Enthalpy of Vaporization
261.00 kJ/mol 35
Enthalpy of Fusion
17.20 kJ/mol 15
Enthalpy of Atomization
314.00 kJ/mol 33
All >>
<< Thermal
Lanthanide Metals
Cerium
Samarium
Lanthanum
Europium
Promethium
Thulium
Compare Lanthanide Series
Cerium vs Thulium
Cerium vs Promethium
Cerium vs Ytterbium
Lanthanide Metals
Ytterbium
Periodi...
|
Physical
|
Chemical
|
Mechanical
Terbium
Periodi...
|
Physical
|
Chemical
|
Mechanical
Dysprosium
Periodi...
|
Physical
|
Chemical
|
Mechanical
» More Lanthanide Metals
Compare Lanthanide Series
Lanthanum vs Cerium
Periodi...
|
Physical
|
Chemical
|
Mechanical
Samarium vs Cerium
Periodi...
|
Physical
|
Chemical
|
Mechanical
Europium vs Cerium
Periodi...
|
Physical
|
Chemical
|
Mechanical
» More Compare Lanthanide Series