68
Er
Erbium
167.2593
Basic Information
Bohr Model
Descriptive Numbers
Mass
Periodic Position
Classification
Abundance
Color
Atomic Radius
Temperature
Density
Heat
Speed of Sound
Electrical Resistance
Magnetic Properties
Elasticity
Hardness
Etymology
Discovery & Isolation
Production & Use
Radioactivity
Electron Affinity
Dipole Polarity
Lattice
Electron & Quantum
List of Compounds
Basic Information
Bohr Model
Static
Interactive
Descriptive Numbers
CAS Number
7440-52-0
CID Number
CID23980
Mendeleev Number
35
Pettifor Number
23
Space Group Number
194
Glawe Number
22
Mass
Atomic Mass
167.2593 Da
Uncertainty
0.003
Periodic Position
X Position
15
Y Position
8
Period
6
Group
N/A
Classification
Block
f
Category
Lanthanides
Geochemical
Rare Earth and Similars
Goldschmidt
Lithophilic
Electrical Type
Conductive
Abundance
Seawater
8.7e-13 kg/L
Sun
2.4e-7 mole ratio to silicon
Earth Crust
0.0000035 g
Solar System
2.5e-7 mole ratio to silicon
Meteorites
0.000018 %
Color
Jmol
#00E675
Molcas Gv
#00E675
CPK
#FF1493
Atomic Radius
Empirical
175
Calculated
226
Rahm
272
Uff
339.1
Mm3
267
Alvarez
283
Covalent (Cordero)
189
Covalent (Pyykko)
165
Covalent (Pyykko Double)
133
Metallic
176.1
Temperature
Melting/Freeze (USE)
1802 °K
Melting/Freeze (WEL)
1770 °K
Melting/Freeze (CRC)
1802 °K
Melting/Freeze (LNG)
1802 °K
Boiling/Density (USE)
3141 °K
Boiling/Density (WEL)
3141 °K
Boiling/Density (CRC)
3141 °K
Boiling/Density (LNG)
3141 °K
Boiling/Density (Zhang)
3173 °K
Curie Point
32 Tc
Density
STP
9.066 kg/cm³
Solid (WEL)
9066 kg/cm³
Solid (CRC)
9070 kg/cm³
Solid (LNG)
9066 kg/cm³
Liquid (CR2)
8860 kg/cm³
Heat
Molar Volume
18.46 cm³/mol
Atomic Volume
18.4 cm³
Heat Of Fusion CRC
19.9 kJ/mol
Heat Of Fusion LNG
19.9 kJ/mol
Heat Of Fusion WEL
19.9 kJ/mol
Evaporation USE
317 kJ/mol
Evaporation LNG
280 kJ/mol
Evaporation WEL
285 kJ/mol
Evaporation Zhang
280 kJ/mol
Molar Heat
28.12 J/molK
Heat Capacity USE
0.168 J/gK
Heat Capacity CRC
28.12 J/gK
Heat Capacity LNG
28.12 J/gK
Heat Capacity WEL
28.1 J/gK
Thermal Expansion
0.0000122 1/K
Adiabatic Index
N/A
Speed of Sound
Extensional
2830 m/s
Electrical Resistance
293k
860 nΩm
Magnetic Properties
Order
paramanyetic
Neel Point
82 Tn
Susceptibility
0.0000038 m3/kg
Elasticity
Shear Modulus
28.3 GPa
Bulk Modulus
44.4 GPa
Poisson Ratio
0.237 ν
Youngs Modulus
69.9 GPa
Hardness
Brinell
600–1070
Vickers
432–700
Etymology
Description
It is a soft silvery metal element belonging to the lanthanide series. It has six natural isotopes that are stable and 12 known artificial isotopes. It is used as a neutron absorber in nuclear technology. Other areas of use are also being investigated. It was discovered by Carl G. Mosander in 1843.
Language Of Origin
Swedish
Origin Of Word
From the town of Ytterby in Sweden
Meaning
Proper noun (literal meaning: "remote town")
Symbol Origin
place name
Etymological Description
It is named after the town of Ytterby in Sweden, where high concentrations of yttria and erbium oxide are found. After 1860, the element known as terbia was renamed erbia, and after 1877, the element known as erbia was renamed terbia.
Discovery & Isolation
Observed/Predicted By
Mr. Mosander
Observed/Discovery Year
1843
Discovery Location
Isolated Sample By
T. Cleve
Isolated Sample Year
1879
Production & Use
Sources
It is found together with the heavier rare earth metals xenotime and euxenite.
Uses
Erbium oxide is used to obtain pink glaze in ceramics. It is also valued as an alloying agent for other exotic metals, with several uses in the nuclear industry. For example, it increases the formability of vanadium.
Radioactivity
Half Life
Stable
Lifetime
Stable
Neutron Mass Absorption
0.036
Neutron Cross Section
165
Electron Affinity
Electron Affinity (kJ/mol)
30.1
Electron Affinity (pauling)
1.24
Electron Affinity (ghosh)
0.212261
Dipole Polarity
Accepted
150
Uncertainty
10
C6 GB
2150
Lattice
Constant Internal Default Radius
3.56
Strucutre
HEX
Angles
π/2, π/2, 2 π/3
Electron & Quantum
Oxidation States
0,2,3
Electron Configuration
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f12
Quantum Number
Ahht
Electron Configuration Semantic
[Car] 4f12 6s2
Shells-0
2
Shells-1
8
Shells-2
18
Shells-3
30
Shells-4
8
Shells-5
2
Ionization Energies-0
589.3
Ionization Energies-1
1150
Ionization Energies-2
2194
Ionization Energies-3
4120
List of Compounds
1-10 of 37 compounds
| Formula | Names |
|---|---|
| Er | erbium erbium metal |
| ErBr3 | erbium(III)bromide tribromoerbium |
| ErCl3 | erbium chloride erbium trichloride trichloroerbium |
| ErB4 | erbium boride |
| ErF3 | erbium fluoride erbium trifluoride trifluoroerbium |
| ErH3 | erbium hydride erbium trihydride |
| ErI3 | erbium iodide erbium(III) iodide erbium(III) iodide anhydrous erbium triiodide triiodoerbium |
| ErN | erbium nitride |
| ErSb | erbium antimonide antimony, compound with erbium (1:1) |
| ErSi2 | erbium silicide |
