Erbiyûm

Erbiyûm (Er)

chemical element with atomic number 68
Atomic Number68
Atomic Weight167.259
Hejmara baristeyî166
Group
Period6
Blockf
Proton68 p+
Notron98 n0
Kareva68 e-
Animated Bohr model of Er (Erbiyûm)

Physical Property

Atomic Radius
175 pm
molar volume
Covalent Radius
165 pm
Metallic Radius
ionic radius
89 pm
Crystal Radius
103 pm
Van der Waals radius
229 pm
density
9,07 g/cm³
Atomic Radii Of The Elements: Erbiyûm0102030405060708090100110120130140150160170180190200210220230pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

wize
proton affinity
electron affinity
ionization energy
ionization energy of Er (Erbiyûm)
enthalpy of vaporization
317 kJ/mol
enthalpy of fusion
standard enthalpy of formation
316,4 kJ/mol
Kareva
electron shell2, 8, 18, 30, 8, 2
Bohr model: Er (Erbiyûm)
valence electron2
Lewis structure: Er (Erbiyûm)
electron configuration[Xe] 4f12 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f12 6s2
Enhanced Bohr model of Er (Erbiyûm)
Orbital Diagram of Er (Erbiyûm)
oxidation number0, 2, 3
electronegativity
1.24
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
3.141,15 K
Melting Point
1.802,15 K
critical pressure
critical temperature
triple point
appearance
color
Silver
appearancesilvery white
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
0,0000122 1/K
molar heat capacity
28,12 J/(mol K)
Specific Heat Capacity
0,168 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
1,2 MS/m
electrical resistivity
0,00000086 m Ω
superconductivity
magnetism
typeparamagnetic
magnetic susceptibility (Mass)
0,00000377 m³/Kg
magnetic susceptibility (Molar)
0,000000630566 m³/mol
magnetic susceptibility (Volume)
0,0341788
magnetic ordering
Germahiya Curie
32 K
Néel temperature
82 K
pêkhate
Crystal StructureSimple Hexagonal (HEX)
lattice constant
3,56 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
bulk modulus
44 GPa
shear modulus
28 GPa
Young's modulus
70 GPa
Poisson's ratio
0,24
Leza dengê
2.830 m/s
classification
CategoryLanthanides, Lanthanides
CAS Group
IUPAC Group
Glawe Number22
Mendeleev Number35
Pettifor Number23
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
150 ± 10 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
165
Neutron Mass Absorption
0,036
quantum number3H6
space group194 (P63/mmc)

Isotopes of Erbium

Stable Isotopes3
Unstable Isotopes36
Natural Isotopes6
Isotopic Composition16633.50%16633.50%16826.98%16826.98%16722.87%16722.87%17014.91%17014.91%1641.60%1641.60%1620.14%1620.14%

142Er

Hejmara baristeyî142
neutron number74
Giraniya atomê
141,970016 ± 0,000537 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê
parity+

decay modeintensity
p (proton emission)

143Er

Hejmara baristeyî143
neutron number75
Giraniya atomê
142,966548 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2005
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
β+ p (β+-delayed proton emission)

144Er

Hejmara baristeyî144
neutron number76
Giraniya atomê
143,9607 ± 0,00021 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2003
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)

145Er

Hejmara baristeyî145
neutron number77
Giraniya atomê
144,957874 ± 0,000215 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
900 ± 200 ms
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1989
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)

146Er

Hejmara baristeyî146
neutron number78
Giraniya atomê
145,952418357 ± 0,000007197 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
1,7 ± 0,6 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1993
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)

147Er

Hejmara baristeyî147
neutron number79
Giraniya atomê
146,949964456 ± 0,000041 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
3,2 ± 1,2 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1992
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)

148Er

Hejmara baristeyî148
neutron number80
Giraniya atomê
147,944735026 ± 0,000011 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
4,6 ± 0,2 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1982
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.15%

149Er

Hejmara baristeyî149
neutron number81
Giraniya atomê
148,942306 ± 0,00003 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
4 ± 2 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1984
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)7%

150Er

Hejmara baristeyî150
neutron number82
Giraniya atomê
149,937915524 ± 0,000018458 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
18,5 ± 0,7 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1982
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

151Er

Hejmara baristeyî151
neutron number83
Giraniya atomê
150,937448567 ± 0,000017681 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
23,5 ± 2 s
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1970
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

152Er

Hejmara baristeyî152
neutron number84
Giraniya atomê
151,935050347 ± 0,000009478 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
10,3 ± 0,1 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1963
parity+

decay modeintensity
α (α emission)90%
β+ (β+ decay; β+ = ϵ + e+)10%

153Er

Hejmara baristeyî153
neutron number85
Giraniya atomê
152,93508635 ± 0,000009967 Da
g-factor
-0,26628571428571 ± 0,002
natural abundance
radioactivity☢️ radioactive element
half-life
37,1 ± 0,2 s
spin7/2
nuclear quadrupole moment
-0,42 ± 0,02
dema îcadkirinê yan keşfê1963
parity-

decay modeintensity
α (α emission)53%
β+ (β+ decay; β+ = ϵ + e+)47%

154Er

Hejmara baristeyî154
neutron number86
Giraniya atomê
153,932790799 ± 0,000005325 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
3,73 ± 0,09 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1963
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.47%

155Er

Hejmara baristeyî155
neutron number87
Giraniya atomê
154,93321571 ± 0,00000652 Da
g-factor
-0,19028571428571 ± 0,0014285714285714
natural abundance
radioactivity☢️ radioactive element
half-life
5,3 ± 0,3 m
spin7/2
nuclear quadrupole moment
-0,27 ± 0,02
dema îcadkirinê yan keşfê1969
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)99.978%
α (α emission)0.022%

156Er

Hejmara baristeyî156
neutron number88
Giraniya atomê
155,931065926 ± 0,00002644 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
19,5 ± 1 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)1.2%

157Er

Hejmara baristeyî157
neutron number89
Giraniya atomê
156,931922652 ± 0,000028454 Da
g-factor
-0,274 ± 0,002
natural abundance
radioactivity☢️ radioactive element
half-life
18,65 ± 0,1 m
spin3/2
nuclear quadrupole moment
0,92 ± 0,01
dema îcadkirinê yan keşfê1966
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

158Er

Hejmara baristeyî158
neutron number90
Giraniya atomê
157,929893474 ± 0,000027074 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2,29 ± 0,06 h
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1961
parity+

decay modeintensity
ϵ (electron capture)100%

159Er

Hejmara baristeyî159
neutron number91
Giraniya atomê
158,93069079 ± 0,00000391 Da
g-factor
-0,202 ± 0,0013333333333333
natural abundance
radioactivity☢️ radioactive element
half-life
36 ± 1 m
spin3/2
nuclear quadrupole moment
1,17 ± 0,01
dema îcadkirinê yan keşfê1962
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

160Er

Hejmara baristeyî160
neutron number92
Giraniya atomê
159,929077193 ± 0,000026029 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
28,58 ± 0,09 h
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1954
parity+

decay modeintensity
ϵ (electron capture)100%

161Er

Hejmara baristeyî161
neutron number93
Giraniya atomê
160,93000353 ± 0,000009419 Da
g-factor
-0,24266666666667 ± 0,002
natural abundance
radioactivity☢️ radioactive element
half-life
3,21 ± 0,03 h
spin3/2
nuclear quadrupole moment
1,363 ± 0,008
dema îcadkirinê yan keşfê1954
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

162Er

Hejmara baristeyî162
neutron number94
Giraniya atomê
161,928787299 ± 0,000000811 Da
g-factor
0
natural abundance
0,139 ± 0,005
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1938
parity+

decay modeintensity
α (α emission)
+ (double β+ decay)

163Er

Hejmara baristeyî163
neutron number95
Giraniya atomê
162,930039908 ± 0,000004967 Da
g-factor
0,2224 ± 0,0016
natural abundance
radioactivity☢️ radioactive element
half-life
75 ± 0,4 m
spin5/2
nuclear quadrupole moment
2,56 ± 0,02
dema îcadkirinê yan keşfê1953
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

164Er

Hejmara baristeyî164
neutron number96
Giraniya atomê
163,929207739 ± 0,000000755 Da
g-factor
0
natural abundance
1,601 ± 0,003
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1938
parity+

decay modeintensity
α (α emission)
+ (double β+ decay)

165Er

Hejmara baristeyî165
neutron number97
Giraniya atomê
164,930733482 ± 0,000000985 Da
g-factor
0,2564 ± 0,0016
natural abundance
radioactivity☢️ radioactive element
half-life
10,36 ± 0,04 h
spin5/2
nuclear quadrupole moment
2,71 ± 0,03
dema îcadkirinê yan keşfê1950
parity-

decay modeintensity
ϵ (electron capture)100%

166Er

Hejmara baristeyî166
neutron number98
Giraniya atomê
165,930301067 ± 0,000000358 Da
g-factor
0
natural abundance
33,503 ± 0,036
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1934
parity+

167Er

Hejmara baristeyî167
neutron number99
Giraniya atomê
166,932056192 ± 0,000000306 Da
g-factor
-0,16065714285714 ± 0,00011428571428571
natural abundance
22,869 ± 0,009
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin7/2
nuclear quadrupole moment
3,57 ± 0,03
dema îcadkirinê yan keşfê1934
parity+

168Er

Hejmara baristeyî168
neutron number100
Giraniya atomê
167,932378282 ± 0,00000028 Da
g-factor
0
natural abundance
26,978 ± 0,018
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1934
parity+

169Er

Hejmara baristeyî169
neutron number101
Giraniya atomê
168,934598444 ± 0,000000326 Da
g-factor
0,9656 ± 0,0008
natural abundance
radioactivity☢️ radioactive element
half-life
9,392 ± 0,018 d
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1956
parity-

decay modeintensity
β (β decay)100%

170Er

Hejmara baristeyî170
neutron number102
Giraniya atomê
169,935471933 ± 0,000001488 Da
g-factor
0
natural abundance
14,91 ± 0,036
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1934
parity+

decay modeintensity
(double β decay)
α (α emission)

171Er

Hejmara baristeyî171
neutron number103
Giraniya atomê
170,938037372 ± 0,000001511 Da
g-factor
0,2628 ± 0,004
natural abundance
radioactivity☢️ radioactive element
half-life
7,516 ± 0,002 h
spin5/2
nuclear quadrupole moment
2,86 ± 0,09
dema îcadkirinê yan keşfê1938
parity-

decay modeintensity
β (β decay)100%

172Er

Hejmara baristeyî172
neutron number104
Giraniya atomê
171,939363461 ± 0,000004253 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
49,3 ± 0,5 h
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1956
parity+

decay modeintensity
β (β decay)100%

173Er

Hejmara baristeyî173
neutron number105
Giraniya atomê
172,9424 ± 0,00021 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,434 ± 0,017 m
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1972
parity-

decay modeintensity
β (β decay)100%

174Er

Hejmara baristeyî174
neutron number106
Giraniya atomê
173,94423 ± 0,00032 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
3,2 ± 0,2 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1989
parity+

decay modeintensity
β (β decay)100%

175Er

Hejmara baristeyî175
neutron number107
Giraniya atomê
174,94777 ± 0,00043 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,2 ± 0,3 m
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1996
parity+

decay modeintensity
β (β decay)100%

176Er

Hejmara baristeyî176
neutron number108
Giraniya atomê
175,94994 ± 0,00043 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2012
parity+

decay modeintensity
β (β decay)

177Er

Hejmara baristeyî177
neutron number109
Giraniya atomê
176,95399 ± 0,00054 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2012
parity-

decay modeintensity
β (β decay)

178Er

Hejmara baristeyî178
neutron number110
Giraniya atomê
177,956779 ± 0,00064 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2012
parity+

decay modeintensity
β (β decay)

179Er

Hejmara baristeyî179
neutron number111
Giraniya atomê
178,961267 ± 0,000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2018
parity-

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)

180Er

Hejmara baristeyî180
neutron number112
Giraniya atomê
179,96438 ± 0,000537 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2018
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
Erbium

dîrok

kaşîf an îcadkerCarl Mosander
location of discoverySweden
dema îcadkirinê yan keşfê1843
BêjenasîNamed after the Swedish town, Ytterby.
pronunciationUR-bi-em (îngilîzî)

source

Abundance
Abundance in Earth's crust
3,5 mg/kg
natural abundance (Okyanûs)
0,00000087 mg/L
natural abundance (human body)
natural abundance (meteoroid)
0,000018 %
natural abundance (Roj)
0,0000001 %
Abundance in Universe
0,0000002 %

Nuclear Screening Constants

1s1.3263
2p4.346
2s17.7984
3d13.6397
3p20.3891
3s20.9231
4d35.7288
4f40.0216
4p32.8908
4s31.768
5p50.528
5s48.282
6s59.5238