Terbju[m]

Terbju[m] (Tb)

element with the atomic number of 65
Atomic Number65
Atomic Weight158.92535
mass number159
Group
Period6
Blockf
proton65 p+
neutron94 n0
elettron65 e-
Animated Bohr model of Tb (Terbju[m])

Physical Property

Atomic Radius
175 pm
molar volume
covalent radius
168 pm
Metallic Radius
ionic radius
92.3 pm
Crystal Radius
106.3 pm
Van der Waals radius
233 pm
densità
8.23 g/cm³
Atomic Radii Of The Elements: Terbju[m]0102030405060708090100110120130140150160170180190200210220230240pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

enerġija
proton affinity
electron affinity
ionization energy
ionization energy of Tb (Terbju[m])
enthalpy of vaporization
389 kJ/mol
enthalpy of fusion
standard enthalpy of formation
388.7 kJ/mol
elettron
electron shell2, 8, 18, 27, 8, 2
Bohr model: Tb (Terbju[m])
valence electron2
Lewis structure: Tb (Terbju[m])
electron configuration[Xe] 4f9 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f9 6s2
Enhanced Bohr model of Tb (Terbju[m])
Orbital Diagram of Tb (Terbju[m])
oxidation number0, 1, 2, 3, 4
electronegativity
Electrophilicity Index
1.3142725121307568 eV/particle
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
3,503.15 K
Melting Point
1,632.15 K
critical pressure
critical temperature
triple point
appearance
kulur
Silver
appearancesilvery white
refractive index
thermodynamic material property
Thermal Conductivity
11.1 W/(m K)
thermal expansion
0.0000103 1/K
molar heat capacity
28.91 J/(mol K)
Specific Heat Capacity
0.182 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
0.83 MS/m
electrical resistivity
0.0000012 m Ω
superconductivity
magnetism
typeparamagnetic
magnetic susceptibility (Mass)
0.0000136 m³/Kg
magnetic susceptibility (Molar)
0.000002161385 m³/mol
magnetic susceptibility (Volume)
0.1117784
magnetic ordering
Curie temperature
222 K
Néel temperature
230 K
structure
Crystal StructureSimple Hexagonal (HEX)
lattice constant
3.6 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
bulk modulus
38.7 GPa
shear modulus
22 GPa
Young's modulus
56 GPa
Poisson's ratio
0.26
speed of sound
2,620 m/s
classification
CategoryLanthanides, Lanthanides
CAS Group
IUPAC Group
Glawe Number25
Mendeleev Number29
Pettifor Number26
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
170 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
23
Neutron Mass Absorption
0.009
quantum number6H15/2
space group194 (P63/mmc)

Isotopes of Terbium

Stable Isotopes1
Unstable Isotopes39
Natural Isotopes1

135Tb

mass number135
neutron number70
relative atomic mass
134.964516 ± 0.000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1.01 ± 0.28 ms
spin7/2
nuclear quadrupole moment
time of discovery or invention2004
parity-

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

136Tb

mass number136
neutron number71
relative atomic mass
135.96146 ± 0.000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin5
nuclear quadrupole moment
time of discovery or invention
parity-

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

137Tb

mass number137
neutron number72
relative atomic mass
136.95602 ± 0.00043 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin3/2
nuclear quadrupole moment
time of discovery or invention
parity+

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

138Tb

mass number138
neutron number73
relative atomic mass
137.953193 ± 0.000322 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin2
nuclear quadrupole moment
time of discovery or invention1993
parity+

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

139Tb

mass number139
neutron number74
relative atomic mass
138.94833 ± 0.00032 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1.6 ± 0.2 s
spin5/2
nuclear quadrupole moment
time of discovery or invention1999
parity-

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

140Tb

mass number140
neutron number75
relative atomic mass
139.945805048 ± 0.000859359 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2.29 ± 0.15 s
spin7
nuclear quadrupole moment
time of discovery or invention1986
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
ϵ (electron capture)3%
β+ p (β+-delayed proton emission)0.26%

141Tb

mass number141
neutron number76
relative atomic mass
140.941448 ± 0.000113 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
3.5 ± 0.2 s
spin5/2
nuclear quadrupole moment
time of discovery or invention1986
parity-

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

142Tb

mass number142
neutron number77
relative atomic mass
141.939280858 ± 0.000752079 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
597 ± 17 ms
spin1
nuclear quadrupole moment
time of discovery or invention1991
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
e+ (positron emission)96.8%
ϵ (electron capture)3.2%
β+ p (β+-delayed proton emission)0.0022%

143Tb

mass number143
neutron number78
relative atomic mass
142.935137332 ± 0.000055 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
12 ± 1 s
spin11/2
nuclear quadrupole moment
time of discovery or invention1985
parity-

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

144Tb

mass number144
neutron number79
relative atomic mass
143.933045 ± 0.00003 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin1
nuclear quadrupole moment
time of discovery or invention1982
parity+

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

145Tb

mass number145
neutron number80
relative atomic mass
144.928717001 ± 0.000119051 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
30.9 ± 0.6 s
spin11/2
nuclear quadrupole moment
time of discovery or invention1981
parity-

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

146Tb

mass number146
neutron number81
relative atomic mass
145.927252739 ± 0.000048159 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
8 ± 4 s
spin1
nuclear quadrupole moment
time of discovery or invention1974
parity+

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

147Tb

mass number147
neutron number82
relative atomic mass
146.92405462 ± 0.000008691 Da
g-factor
3.42 ± 0.1
natural abundance
radioactivity☢️ radioactive element
half-life
1.64 ± 0.03 h
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1969
parity+

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

148Tb

mass number148
neutron number83
relative atomic mass
147.924275476 ± 0.000013379 Da
g-factor
-0.88 ± 0.01
natural abundance
radioactivity☢️ radioactive element
half-life
60 ± 1 m
spin2
nuclear quadrupole moment
-0.3 ± 0.2
time of discovery or invention1960
parity-

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

149Tb

mass number149
neutron number84
relative atomic mass
148.923253792 ± 0.000003895 Da
g-factor
2.72 ± 0.04
natural abundance
radioactivity☢️ radioactive element
half-life
4.118 ± 0.025 h
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1950
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)83.3%
α (α emission)16.7%

150Tb

mass number150
neutron number85
relative atomic mass
149.923664799 ± 0.000007912 Da
g-factor
-0.45 ± 0.01
natural abundance
radioactivity☢️ radioactive element
half-life
3.48 ± 0.16 h
spin2
nuclear quadrupole moment
time of discovery or invention1959
parity

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

151Tb

mass number151
neutron number86
relative atomic mass
150.92310897 ± 0.000004395 Da
g-factor
1.852 ± 0.012
natural abundance
radioactivity☢️ radioactive element
half-life
17.609 ± 0.001 h
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1953
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)99.9905%
α (α emission)0.0095%

152Tb

mass number152
neutron number87
relative atomic mass
151.924081855 ± 0.000042955 Da
g-factor
-0.29 ± 0.01
natural abundance
radioactivity☢️ radioactive element
half-life
17.5 ± 0.1 h
spin2
nuclear quadrupole moment
0.34 ± 0.13
time of discovery or invention1959
parity-

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

153Tb

mass number153
neutron number88
relative atomic mass
152.923441694 ± 0.000004237 Da
g-factor
1.388 ± 0.008
natural abundance
radioactivity☢️ radioactive element
half-life
2.34 ± 0.01 d
spin5/2
nuclear quadrupole moment
1.08 ± 0.14
time of discovery or invention1957
parity+

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

154Tb

mass number154
neutron number89
relative atomic mass
153.924683681 ± 0.000048641 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
9.994 ± 0.039 h
spin3
nuclear quadrupole moment
time of discovery or invention1972
parity-

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

155Tb

mass number155
neutron number90
relative atomic mass
154.923509511 ± 0.000010552 Da
g-factor
1.3533333333333 ± 0.013333333333333
natural abundance
radioactivity☢️ radioactive element
half-life
5.32 ± 0.06 d
spin3/2
nuclear quadrupole moment
1.41 ± 0.06
time of discovery or invention1957
parity+

decay modeintensity
ϵ (electron capture)100%

156Tb

mass number156
neutron number91
relative atomic mass
155.924754209 ± 0.000004044 Da
g-factor
0.56666666666667 ± 0.066666666666667
natural abundance
radioactivity☢️ radioactive element
half-life
5.35 ± 0.1 d
spin3
nuclear quadrupole moment
2.3 ± 0.8
time of discovery or invention1950
parity-

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

157Tb

mass number157
neutron number92
relative atomic mass
156.924031888 ± 0.000001092 Da
g-factor
1.3533333333333 ± 0.013333333333333
natural abundance
radioactivity☢️ radioactive element
half-life
71 ± 7 y
spin3/2
nuclear quadrupole moment
1.4 ± 0.08
time of discovery or invention1960
parity+

decay modeintensity
ϵ (electron capture)100%

158Tb

mass number158
neutron number93
relative atomic mass
157.925419942 ± 0.00000136 Da
g-factor
0.58433333333333 ± 0.0023333333333333
natural abundance
radioactivity☢️ radioactive element
half-life
180 ± 11 y
spin3
nuclear quadrupole moment
time of discovery or invention1957
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)83.4%
β (β decay)16.6%

159Tb

mass number159
neutron number94
relative atomic mass
158.925353707 ± 0.000001184 Da
g-factor
1.3393333333333 ± 0.0026666666666667
natural abundance
100
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
1.432 ± 0.008
time of discovery or invention1933
parity+

160Tb

mass number160
neutron number95
relative atomic mass
159.927174553 ± 0.000001191 Da
g-factor
0.566 ± 0.0026666666666667
natural abundance
radioactivity☢️ radioactive element
half-life
72.3 ± 0.2 d
spin3
nuclear quadrupole moment
3.85 ± 0.05
time of discovery or invention1943
parity-

decay modeintensity
β (β decay)100%

161Tb

mass number161
neutron number96
relative atomic mass
160.927576806 ± 0.000001308 Da
g-factor
1.4666666666667 ± 0.066666666666667
natural abundance
radioactivity☢️ radioactive element
half-life
6.948 ± 0.005 d
spin3/2
nuclear quadrupole moment
1.3 ± 0.6
time of discovery or invention1949
parity+

decay modeintensity
β (β decay)100%

162Tb

mass number162
neutron number97
relative atomic mass
161.9292754 ± 0.0000022 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
7.6 ± 0.15 m
spin1
nuclear quadrupole moment
time of discovery or invention1965
parity-

decay modeintensity
β (β decay)100%

163Tb

mass number163
neutron number98
relative atomic mass
162.930653609 ± 0.000004358 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
19.5 ± 0.3 m
spin3/2
nuclear quadrupole moment
time of discovery or invention1966
parity+

decay modeintensity
β (β decay)100%

164Tb

mass number164
neutron number99
relative atomic mass
163.933327561 ± 0.000002 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
3 ± 0.1 m
spin5
nuclear quadrupole moment
time of discovery or invention1968
parity+

decay modeintensity
β (β decay)100%

165Tb

mass number165
neutron number100
relative atomic mass
164.934955198 ± 0.000001654 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2.11 ± 0.1 m
spin3/2
nuclear quadrupole moment
time of discovery or invention1983
parity+

decay modeintensity
β (β decay)100%

166Tb

mass number166
neutron number101
relative atomic mass
165.937939727 ± 0.00000157 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
27.1 ± 1.5 s
spin1
nuclear quadrupole moment
time of discovery or invention1996
parity-

decay modeintensity
β (β decay)100%

167Tb

mass number167
neutron number102
relative atomic mass
166.940007046 ± 0.000002071 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
18.9 ± 1.6 s
spin3/2
nuclear quadrupole moment
time of discovery or invention1999
parity+

decay modeintensity
β (β decay)100%

168Tb

mass number168
neutron number103
relative atomic mass
167.943337074 ± 0.0000045 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
9.4 ± 0.4 s
spin4
nuclear quadrupole moment
time of discovery or invention1999
parity-

decay modeintensity
β (β decay)100%

169Tb

mass number169
neutron number104
relative atomic mass
168.945807 ± 0.000322 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
5.13 ± 0.32 s
spin3/2
nuclear quadrupole moment
time of discovery or invention2012
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

170Tb

mass number170
neutron number105
relative atomic mass
169.949855 ± 0.000322 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
960 ± 78 ms
spin2
nuclear quadrupole moment
time of discovery or invention2012
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

171Tb

mass number171
neutron number106
relative atomic mass
170.953011 ± 0.000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1.23 ± 0.1 s
spin3/2
nuclear quadrupole moment
time of discovery or invention2012
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

172Tb

mass number172
neutron number107
relative atomic mass
171.957391 ± 0.000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
760 ± 190 ms
spin6
nuclear quadrupole moment
time of discovery or invention2012
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

173Tb

mass number173
neutron number108
relative atomic mass
172.960805 ± 0.000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin3/2
nuclear quadrupole moment
time of discovery or invention2018
parity+

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

174Tb

mass number174
neutron number109
relative atomic mass
173.965679 ± 0.000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin2
nuclear quadrupole moment
time of discovery or invention2018
parity-

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

storja

discoverer or inventorCarl Mosander
location of discoverySweden
time of discovery or invention1843
etimoloġijaNamed after Ytterby, a village in Sweden.
pronunciationTUR-bi-em (Ingliż)

source

Abundance
Abundance in Earth's crust
1.2 mg/kg
natural abundance (ocean)
0.00000014 mg/L
natural abundance (human body)
natural abundance (meteoroid)
0.0000039 %
natural abundance (Xemx)
0.00000001 %
Abundance in Universe
0.00000005 %

Nuclear Screening Constants

1s1.2739
2p4.3076
2s17.0278
3d13.7015
3p19.9853
3s20.4485
4d34.69
4f39.1352
4p31.6012
4s30.98
5p48.039
5s45.8295
6s56.6996