Lutetium

Lutetium (Lu)

element with the atomic number of 71
Atomic Number71
Atomic Weight174.9668
mass number175
Group
Period6
Blockf
proton71 p+
neutron104 n0
electron71 e-
Animated Bohr model of Lu (Lutetium)

Āhuatanga Ōkiko

Atomic Radius
molar volume
covalent radius
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
density
Atomic Radii Of The Elements: Lutetium0102030405060708090100110120130140150160170180190200210220230pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

energy
proton affinity
electron affinity
ionization energy
ionization energy of Lu (Lutetium)
enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
electron
electron shell2, 8, 18, 32, 9, 2
Bohr model: Lu (Lutetium)
valence electron2
Lewis structure: Lu (Lutetium)
electron configuration[Xe] 4f14 5d1 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d1 6s2
Enhanced Bohr model of Lu (Lutetium)
Orbital Diagram of Lu (Lutetium)
oxidation number0, 2, 3
electronegativity
1
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
triple point
appearance
color
Silver
appearancesilvery white
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
electrical resistivity
superconductivity
magnetism
typeparamagnetic
magnetic susceptibility (Mass)
0.0000000012 m³/Kg
magnetic susceptibility (Molar)
0.00000000021 m³/mol
magnetic susceptibility (Volume)
0.0000118
magnetic ordering
Curie temperature
Néel temperature
structure
Crystal StructureSimple Hexagonal (HEX)
lattice constant
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
0.26
speed of sound
classification
CategoryLanthanides, Transition metals
CAS Group
IUPAC Group
Glawe Number19
Mendeleev Number41
Pettifor Number21
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotrope
Neutron cross section
85
Neutron Mass Absorption
0.022
quantum number2D3/2
space group194 (P63/mmc)

Isotopes of Lutetium

Stable Isotopes1
Unstable Isotopes38
Natural Isotopes2
Isotopic Composition17597.40%17597.40%1762.60%1762.60%

150Lu

mass number150
neutron number79
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
45 ± 3 ms
spin5
nuclear quadrupole moment
time of discovery or invention1993
parity-

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

151Lu

mass number151
neutron number80
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
78.4 ± 0.9 ms
spin11/2
nuclear quadrupole moment
time of discovery or invention1982
parity-

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

152Lu

mass number152
neutron number81
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
650 ± 70 ms
spin4
nuclear quadrupole moment
time of discovery or invention1987
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)15%

153Lu

mass number153
neutron number82
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
900 ± 200 ms
spin11/2
nuclear quadrupole moment
time of discovery or invention1989
parity-

decay modeintensity
α (α emission)
β+ (β+ decay; β+ = ϵ + e+)
p (proton emission)0%

154Lu

mass number154
neutron number83
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin2
nuclear quadrupole moment
time of discovery or invention1981
parity-

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

155Lu

mass number155
neutron number84
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
68 ± 2 ms
spin11/2
nuclear quadrupole moment
time of discovery or invention1965
parity-

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

156Lu

mass number156
neutron number85
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
494 ± 12 ms
spin2
nuclear quadrupole moment
time of discovery or invention1965
parity

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

157Lu

mass number157
neutron number86
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
7.7 ± 2 s
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1977
parity+

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

158Lu

mass number158
neutron number87
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
10.6 ± 0.3 s
spin2
nuclear quadrupole moment
time of discovery or invention1979
parity

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)99.09%
α (α emission)0.91%

159Lu

mass number159
neutron number88
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
12.1 ± 1 s
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1980
parity+

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

160Lu

mass number160
neutron number89
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
36.1 ± 0.3 s
spin2
nuclear quadrupole moment
time of discovery or invention1979
parity-

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

161Lu

mass number161
neutron number90
Relative Atomic Mass
g-factor
0.444 ± 0.006
natural abundance
radioactivity☢️ radioactive element
half-life
77 ± 2 s
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1973
parity+

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

162Lu

mass number162
neutron number91
Relative Atomic Mass
g-factor
0.0551 ± 0.0011
natural abundance
radioactivity☢️ radioactive element
half-life
1.37 ± 0.02 m
spin1
nuclear quadrupole moment
0.519 ± 0.008
time of discovery or invention1978
parity-

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

163Lu

mass number163
neutron number92
Relative Atomic Mass
g-factor
0.1534 ± 0.002
natural abundance
radioactivity☢️ radioactive element
half-life
3.97 ± 0.13 m
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1979
parity+

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

164Lu

mass number164
neutron number93
Relative Atomic Mass
g-factor
0.0589 ± 0.0011
natural abundance
radioactivity☢️ radioactive element
half-life
3.14 ± 0.03 m
spin1
nuclear quadrupole moment
0.608 ± 0.007
time of discovery or invention1977
parity-

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

165Lu

mass number165
neutron number94
Relative Atomic Mass
g-factor
-0.0488 ± 0.0006
natural abundance
radioactivity☢️ radioactive element
half-life
10.74 ± 0.1 m
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1973
parity+

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

166Lu

mass number166
neutron number95
Relative Atomic Mass
g-factor
0.48383333333333 ± 0.002
natural abundance
radioactivity☢️ radioactive element
half-life
2.65 ± 0.1 m
spin6
nuclear quadrupole moment
4.33 ± 0.04
time of discovery or invention1969
parity-

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

167Lu

mass number167
neutron number96
Relative Atomic Mass
g-factor
0.66228571428571 ± 0.0011428571428571
natural abundance
radioactivity☢️ radioactive element
half-life
51.5 ± 1 m
spin7/2
nuclear quadrupole moment
3.28 ± 0.02
time of discovery or invention1958
parity+

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

168Lu

mass number168
neutron number97
Relative Atomic Mass
g-factor
0.50116666666667 ± 0.0041666666666667
natural abundance
radioactivity☢️ radioactive element
half-life
5.5 ± 0.1 m
spin6
nuclear quadrupole moment
4.77 ± 0.06
time of discovery or invention1960
parity-

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

169Lu

mass number169
neutron number98
Relative Atomic Mass
g-factor
0.65371428571429 ± 0.0011428571428571
natural abundance
radioactivity☢️ radioactive element
half-life
34.06 ± 0.05 h
spin7/2
nuclear quadrupole moment
3.48 ± 0.03
time of discovery or invention1955
parity+

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

170Lu

mass number170
neutron number99
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2.012 ± 0.03 d
spin0
nuclear quadrupole moment
0
time of discovery or invention1951
parity+

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

171Lu

mass number171
neutron number100
Relative Atomic Mass
g-factor
0.65314285714286 ± 0.0011428571428571
natural abundance
radioactivity☢️ radioactive element
half-life
8.247 ± 0.023 d
spin7/2
nuclear quadrupole moment
3.53 ± 0.03
time of discovery or invention1951
parity+

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

172Lu

mass number172
neutron number101
Relative Atomic Mass
g-factor
0.72275 ± 0.0025
natural abundance
radioactivity☢️ radioactive element
half-life
6.7 ± 0.03 d
spin4
nuclear quadrupole moment
3.8 ± 0.04
time of discovery or invention1951
parity-

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

173Lu

mass number173
neutron number102
Relative Atomic Mass
g-factor
0.64942857142857 ± 0.00057142857142857
natural abundance
radioactivity☢️ radioactive element
half-life
1.37 ± 0.01 y
spin7/2
nuclear quadrupole moment
3.53 ± 0.02
time of discovery or invention1951
parity+

decay modeintensity
ϵ (electron capture)100%

174Lu

mass number174
neutron number103
Relative Atomic Mass
g-factor
1.982 ± 0.005
natural abundance
radioactivity☢️ radioactive element
half-life
3.31 ± 0.05 y
spin1
nuclear quadrupole moment
0.773 ± 0.007
time of discovery or invention1951
parity-

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

175Lu

mass number175
neutron number104
Relative Atomic Mass
g-factor
0.63591428571429 ± 0.00054285714285714
natural abundance
97.401 ± 0.013
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin7/2
nuclear quadrupole moment
3.49 ± 0.02
time of discovery or invention1934
parity+

176Lu

mass number176
neutron number105
Relative Atomic Mass
g-factor
0.45142857142857 ± 0.00071428571428571
natural abundance
2.599 ± 0.013
radioactivity☢️ radioactive element
half-life
37.01 ± 0.17 Gy
spin7
nuclear quadrupole moment
time of discovery or invention1935
parity-

decay modeintensity
β (β decay)100%
β+ (β+ decay; β+ = ϵ + e+)0.45%

177Lu

mass number177
neutron number106
Relative Atomic Mass
g-factor
0.63757142857143 ± 0.0004
natural abundance
radioactivity☢️ radioactive element
half-life
6.6443 ± 0.0009 d
spin7/2
nuclear quadrupole moment
3.39 ± 0.03
time of discovery or invention1945
parity+

decay modeintensity
β (β decay)100%

178Lu

mass number178
neutron number107
Relative Atomic Mass
g-factor
-1.373 ± 0.009
natural abundance
radioactivity☢️ radioactive element
half-life
28.4 ± 0.2 m
spin1
nuclear quadrupole moment
0.708 ± 0.01
time of discovery or invention1957
parity+

decay modeintensity
β (β decay)100%

179Lu

mass number179
neutron number108
Relative Atomic Mass
g-factor
0.67657142857143 ± 0.0034285714285714
natural abundance
radioactivity☢️ radioactive element
half-life
4.59 ± 0.06 h
spin7/2
nuclear quadrupole moment
3.32 ± 0.03
time of discovery or invention1961
parity+

decay modeintensity
β (β decay)100%

180Lu

mass number180
neutron number109
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
5.7 ± 0.1 m
spin5
nuclear quadrupole moment
time of discovery or invention1971
parity+

decay modeintensity
β (β decay)100%

181Lu

mass number181
neutron number110
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
3.5 ± 0.3 m
spin7/2
nuclear quadrupole moment
time of discovery or invention1982
parity+

decay modeintensity
β (β decay)100%

182Lu

mass number182
neutron number111
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2 ± 0.2 m
spin1
nuclear quadrupole moment
time of discovery or invention1982
parity-

decay modeintensity
β (β decay)100%

183Lu

mass number183
neutron number112
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
58 ± 4 s
spin7/2
nuclear quadrupole moment
time of discovery or invention1983
parity+

decay modeintensity
β (β decay)100%

184Lu

mass number184
neutron number113
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
20 ± 3 s
spin3
nuclear quadrupole moment
time of discovery or invention1989
parity+

decay modeintensity
β (β decay)100%

185Lu

mass number185
neutron number114
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin7/2
nuclear quadrupole moment
time of discovery or invention2009
parity+

decay modeintensity
β (β decay)

186Lu

mass number186
neutron number115
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention2012
parity

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

187Lu

mass number187
neutron number116
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin7/2
nuclear quadrupole moment
time of discovery or invention2012
parity+

decay modeintensity
β (β decay)

188Lu

mass number188
neutron number117
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin
nuclear quadrupole moment
time of discovery or invention2012
parity

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
Lutetium sublimed dendritic and 1cm3 cube

kōrero nehe

discoverer or inventorGeorges Urbain
location of discoveryFrance
time of discovery or invention1907
etymologyNamed for the ancient name of Paris, Lutecia.
pronunciationloo-TEE-shi-em (Ingarihi)

source

Abundance
Abundance in Earth's crust
natural abundance (Moana nui)
natural abundance (human body)
natural abundance (meteoroid)
0.0000029 %
natural abundance (Te Rā)
0.0000001 %
Abundance in Universe
0.00000001 %

Nuclear Screening Constants

1s1.3805
2p4.389
2s18.5502
3d13.5812
3p20.8337
3s21.4655
4d35.7108
4f40.0688
4p33.8096
4s32.7308
5d50.887
5p52.32
5s50.045
6s62.1956