Lanthan

Lanthan (La)

chemical element with symbol La and atomic number 57
Atomic Number57
Atomic Weight138.90547
mass number139
Group3
Period6
Blockd
Proton57 p+
Neutron82 n0
Elektron57 e-
Animated Bohr model of La (Lanthan)

Physikalesch Eegenschaft

Atomic Radius
molar volume
Covalent Radius
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
density
Atomic Radii Of The Elements: Lanthan0102030405060708090100110120130140150160170180190200210220230240250pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

energie
proton affinity
electron affinity
ionization energy
ionization energy of La (Lanthan)
enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
Elektron
electron shell2, 8, 18, 18, 9, 2
Bohr model: La (Lanthan)
valence electron2
Lewis structure: La (Lanthan)
electron configuration[Xe] 5d1 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 5d1 6s2
Enhanced Bohr model of La (Lanthan)
Orbital Diagram of La (Lanthan)
oxidation number0, 1, 2, 3
electronegativity
1.1
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
triple point
appearance
Faarf
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
Magnetismus
typeparamagnetic
magnetic susceptibility (Mass)
0,000000011 m³/Kg
magnetic susceptibility (Molar)
0,000000001528 m³/mol
magnetic susceptibility (Volume)
0,00006761
magnetic ordering
Curie temperature
Néel temperature
Struktur
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
0,28
speed of sound
classification
CategoryLanthanides, Lanthanides
CAS GroupIIIA
IUPAC GroupIIIB
Glawe Number32
Mendeleev Number13
Pettifor Number33
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotrope
Neutron cross section
8,98
Neutron Mass Absorption
0,0023
quantum number2D3/2
space group194 (P63/mmc)

Isotopes of Lanthanum

Stable Isotopes1
Unstable Isotopes41
Natural Isotopes2
Isotopic Composition13999.91%13999.91%1380.09%1380.09%

116La

mass number116
neutron number59
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
spin
nuclear quadrupole moment
Datum vun der Entdeckung
parity

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

117La

mass number117
neutron number60
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
21,7 ± 1,8 ms
spin3/2
nuclear quadrupole moment
Datum vun der Entdeckung2001
parity+

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

118La

mass number118
neutron number61
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
spin1
nuclear quadrupole moment
Datum vun der Entdeckung
parity-

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

119La

mass number119
neutron number62
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
spin11/2
nuclear quadrupole moment
Datum vun der Entdeckung
parity-

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

120La

mass number120
neutron number63
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
2,8 ± 0,2 s
spin1
nuclear quadrupole moment
Datum vun der Entdeckung1984
parity-

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

121La

mass number121
neutron number64
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
5,3 ± 0,2 s
spin11/2
nuclear quadrupole moment
Datum vun der Entdeckung1988
parity-

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

122La

mass number122
neutron number65
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
8,6 ± 0,5 s
spin1
nuclear quadrupole moment
Datum vun der Entdeckung1984
parity-

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

123La

mass number123
neutron number66
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
17 ± 3 s
spin11/2
nuclear quadrupole moment
Datum vun der Entdeckung1978
parity-

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

124La

mass number124
neutron number67
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
29,21 ± 0,17 s
spin7
nuclear quadrupole moment
Datum vun der Entdeckung1978
parity

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

125La

mass number125
neutron number68
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
64,8 ± 1,2 s
spin11/2
nuclear quadrupole moment
Datum vun der Entdeckung1973
parity-

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

126La

mass number126
neutron number69
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
54 ± 2 s
spin5
nuclear quadrupole moment
Datum vun der Entdeckung1961
parity-

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

127La

mass number127
neutron number70
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
5,1 ± 0,1 m
spin11/2
nuclear quadrupole moment
Datum vun der Entdeckung1963
parity-

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

128La

mass number128
neutron number71
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
5,18 ± 0,14 m
spin5
nuclear quadrupole moment
Datum vun der Entdeckung1961
parity+

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

129La

mass number129
neutron number72
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
11,6 ± 0,2 m
spin3/2
nuclear quadrupole moment
Datum vun der Entdeckung1963
parity+

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

130La

mass number130
neutron number73
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
8,7 ± 0,1 m
spin3
nuclear quadrupole moment
Datum vun der Entdeckung1961
parity

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

131La

mass number131
neutron number74
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
59 ± 2 m
spin3/2
nuclear quadrupole moment
Datum vun der Entdeckung1951
parity+

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

132La

mass number132
neutron number75
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
4,59 ± 0,04 h
spin2
nuclear quadrupole moment
Datum vun der Entdeckung1951
parity-

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

133La

mass number133
neutron number76
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
3,912 ± 0,008 h
spin5/2
nuclear quadrupole moment
Datum vun der Entdeckung1950
parity+

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

134La

mass number134
neutron number77
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
6,45 ± 0,16 m
spin1
nuclear quadrupole moment
Datum vun der Entdeckung1951
parity+

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

135La

mass number135
neutron number78
Relative Atomic Mass
g-factor
1,48 ± 0,036
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
18,91 ± 0,02 h
spin5/2
nuclear quadrupole moment
-0,4 ± 0,4
Datum vun der Entdeckung1948
parity+

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

136La

mass number136
neutron number79
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
9,87 ± 0,03 m
spin1
nuclear quadrupole moment
Datum vun der Entdeckung1950
parity+

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

137La

mass number137
neutron number80
Relative Atomic Mass
g-factor
0,77028571428571 ± 0,0017142857142857
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
60 ± 20 ky
spin7/2
nuclear quadrupole moment
0,21 ± 0,04
Datum vun der Entdeckung1948
parity+

decay modeintensity
ϵ (electron capture)100%

138La

mass number138
neutron number81
Relative Atomic Mass
g-factor
0,74168 ± 0,00004
natural abundance
0,08881 ± 0,00071
Radioaktivitéit☢️ radioactive element
half-life
103 ± 1 Gy
spin5
nuclear quadrupole moment
0,39 ± 0,03
Datum vun der Entdeckung1947
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)65.5%
β (β decay)34.5%

139La

mass number139
neutron number82
Relative Atomic Mass
g-factor
0,79402857142857 ± 0,000057142857142857
natural abundance
99,91119 ± 0,00071
Radioaktivitéitstable isotope
half-lifeNot Radioactive ☢️
spin7/2
nuclear quadrupole moment
0,206 ± 0,004
Datum vun der Entdeckung1924
parity+

140La

mass number140
neutron number83
Relative Atomic Mass
g-factor
0,24333333333333 ± 0,005
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
40,289 ± 0,004 h
spin3
nuclear quadrupole moment
0,087 ± 0,013
Datum vun der Entdeckung1935
parity-

decay modeintensity
β (β decay)100%

141La

mass number141
neutron number84
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
3,92 ± 0,03 h
spin7/2
nuclear quadrupole moment
Datum vun der Entdeckung1951
parity+

decay modeintensity
β (β decay)100%

142La

mass number142
neutron number85
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
91,1 ± 0,5 m
spin2
nuclear quadrupole moment
Datum vun der Entdeckung1953
parity-

decay modeintensity
β (β decay)100%

143La

mass number143
neutron number86
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
14,2 ± 0,1 m
spin7/2
nuclear quadrupole moment
Datum vun der Entdeckung1951
parity

decay modeintensity
β (β decay)100%

144La

mass number144
neutron number87
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
44 ± 0,7 s
spin3
nuclear quadrupole moment
Datum vun der Entdeckung1967
parity-

decay modeintensity
β (β decay)100%

145La

mass number145
neutron number88
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
24,8 ± 2 s
spin5/2
nuclear quadrupole moment
Datum vun der Entdeckung1974
parity+

decay modeintensity
β (β decay)100%

146La

mass number146
neutron number89
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
9,9 ± 0,1 s
spin5
nuclear quadrupole moment
Datum vun der Entdeckung1970
parity-

decay modeintensity
β (β decay)100%

147La

mass number147
neutron number90
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
4,026 ± 0,02 s
spin5/2
nuclear quadrupole moment
Datum vun der Entdeckung1979
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.041%

148La

mass number148
neutron number91
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
1,414 ± 0,025 s
spin2
nuclear quadrupole moment
Datum vun der Entdeckung1969
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.18%

149La

mass number149
neutron number92
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
1,071 ± 0,022 s
spin3/2
nuclear quadrupole moment
Datum vun der Entdeckung1979
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)1.43%

150La

mass number150
neutron number93
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
504 ± 15 ms
spin3
nuclear quadrupole moment
Datum vun der Entdeckung1993
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)2.7%

151La

mass number151
neutron number94
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
465 ± 24 ms
spin1/2
nuclear quadrupole moment
0
Datum vun der Entdeckung1994
parity+

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

152La

mass number152
neutron number95
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
287 ± 16 ms
spin2
nuclear quadrupole moment
Datum vun der Entdeckung1994
parity-

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

153La

mass number153
neutron number96
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
245 ± 18 ms
spin1/2
nuclear quadrupole moment
0
Datum vun der Entdeckung1994
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

154La

mass number154
neutron number97
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
161 ± 15 ms
spin2
nuclear quadrupole moment
Datum vun der Entdeckung2017
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

155La

mass number155
neutron number98
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
101 ± 28 ms
spin1/2
nuclear quadrupole moment
0
Datum vun der Entdeckung2016
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

156La

mass number156
neutron number99
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
84 ± 78 ms
spin4
nuclear quadrupole moment
Datum vun der Entdeckung2017
parity+

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

157La

mass number157
neutron number100
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
spin1/2
nuclear quadrupole moment
0
Datum vun der Entdeckung2018
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
Lanthan 1-cropflipped

Geschicht

Entdecker oder ErfinderCarl Mosander
location of discoverySweden
Datum vun der Entdeckung1839
EtymologieGreek: lanthanein (to be hidden).
pronunciationLAN-the-nem (Englesch)

Quell

Abundance
Abundance in Earth's crust
natural abundance (Ozean)
natural abundance (Mënschleche Kierper)
natural abundance (Meteoroid)
0,000028 %
natural abundance (Sonn)
0,0000002 %
Abundance in Universe
0,0000002 %

Nuclear Screening Constants

1s1.1317
2p4.2044
2s15.0466
3d13.9398
3p18.8604
3s19.0569
4d32.2748
4f55.64
4p29.2936
4s28.2036
5p41.104
5s39.189
6s47.688