Lanthan

Lanthan (La)

grundstof med atomnummer 57
Atomnummer57
Atommasse138.90547
mass number139
Gruppe3
Periode6
Blokd
proton57 p+
neutron82 n0
elektron57 e-
Animated Bohrs atommodel of La (Lanthan)

Fysisk Egenskab

Atomradius
molar volume
Kovalent Radius
Metallic Radius
Ionisk radius
Crystal Radius
Van der Waals-radius
massefylde
Atomic Radii Of The Elements: Lanthan0102030405060708090100110120130140150160170180190200210220230240250pmAtomradiusKovalent RadiusMetallic RadiusVan der Waals-radius

Kemisk Egenskab

energi
proton affinity
electron affinity
ioniseringsenergi
ioniseringsenergi of La (Lanthan)
Fordampningsvarme
smeltevarme
standard enthalpy of formation
elektron
Elektronskal2, 8, 18, 18, 9, 2
Bohrs atommodel: La (Lanthan)
Valenselektron2
Elektronprikmodellen: La (Lanthan)
electron configuration[Xe] 5d1 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 5d1 6s2
Enhanced Bohrs atommodel of La (Lanthan)
Orbital Diagram of La (Lanthan)
Oxidationstrin0, 1, 2, 3
Elektronegativitet
1.1
Electrophilicity Index
fundamental state of matter
stoffaseFast stof
gaseous state of matter
Kogepunkt
Smeltepunkt
critical pressure
critical temperature
trippelpunkt
appearance
farve
Silver
appearancesilvery white
Brydningsindeks
materialeegenskab
Varmeledningsevne
Termisk ekspansion
molar heat capacity
Varmefylde
Adiabateksponenten
electrical properties
typeConductor
specifik ledningsevne
Elektrisk resistivitet
superledning
Magnetisme
typeparamagnetic
magnetic susceptibility (Mass)
0,000000011 m³/Kg
magnetic susceptibility (Molar)
0,000000001528 m³/mol
magnetic susceptibility (Volume)
0,00006761
magnetic ordering
Curietemperaturen
Néel temperature
struktur
KrystalstrukturSimpel Hexagonal (HEX)
lattice constant
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hårdhed
Kompressibilitetsmodul
Forskydningsmodul
E-modul
Poissons forhold
0,28
speed of sound
klassificering
KategoriLantanider, Lanthanides
CAS GroupIIIA
IUPAC GroupIIIB
Glawe Number32
Mendeleev Number13
Pettifor Number33
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

øvrige

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotrope
Neutron cross section
8,98
Neutron Mass Absorption
0,0023
quantum number2D3/2
rumgruppe194 (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
radioaktivitet☢️ radioactive element
halveringstid
spin
nuclear quadrupole moment
opdagelsesdato
Paritet

decay modeIntensitet
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
radioaktivitet☢️ radioactive element
halveringstid
21,7 ± 1,8 ms
spin3/2
nuclear quadrupole moment
opdagelsesdato2001
Paritet+

decay modeIntensitet
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
radioaktivitet☢️ radioactive element
halveringstid
spin1
nuclear quadrupole moment
opdagelsesdato
Paritet-

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

119La

mass number119
neutron number62
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
spin11/2
nuclear quadrupole moment
opdagelsesdato
Paritet-

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

120La

mass number120
neutron number63
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
2,8 ± 0,2 s
spin1
nuclear quadrupole moment
opdagelsesdato1984
Paritet-

decay modeIntensitet
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
radioaktivitet☢️ radioactive element
halveringstid
5,3 ± 0,2 s
spin11/2
nuclear quadrupole moment
opdagelsesdato1988
Paritet-

decay modeIntensitet
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
radioaktivitet☢️ radioactive element
halveringstid
8,6 ± 0,5 s
spin1
nuclear quadrupole moment
opdagelsesdato1984
Paritet-

decay modeIntensitet
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
radioaktivitet☢️ radioactive element
halveringstid
17 ± 3 s
spin11/2
nuclear quadrupole moment
opdagelsesdato1978
Paritet-

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

124La

mass number124
neutron number67
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
29,21 ± 0,17 s
spin7
nuclear quadrupole moment
opdagelsesdato1978
Paritet

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

125La

mass number125
neutron number68
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
64,8 ± 1,2 s
spin11/2
nuclear quadrupole moment
opdagelsesdato1973
Paritet-

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

126La

mass number126
neutron number69
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
54 ± 2 s
spin5
nuclear quadrupole moment
opdagelsesdato1961
Paritet-

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

127La

mass number127
neutron number70
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
5,1 ± 0,1 m
spin11/2
nuclear quadrupole moment
opdagelsesdato1963
Paritet-

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

128La

mass number128
neutron number71
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
5,18 ± 0,14 m
spin5
nuclear quadrupole moment
opdagelsesdato1961
Paritet+

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

129La

mass number129
neutron number72
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
11,6 ± 0,2 m
spin3/2
nuclear quadrupole moment
opdagelsesdato1963
Paritet+

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

130La

mass number130
neutron number73
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
8,7 ± 0,1 m
spin3
nuclear quadrupole moment
opdagelsesdato1961
Paritet

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

131La

mass number131
neutron number74
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
59 ± 2 m
spin3/2
nuclear quadrupole moment
opdagelsesdato1951
Paritet+

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

132La

mass number132
neutron number75
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
4,59 ± 0,04 h
spin2
nuclear quadrupole moment
opdagelsesdato1951
Paritet-

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

133La

mass number133
neutron number76
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
3,912 ± 0,008 h
spin5/2
nuclear quadrupole moment
opdagelsesdato1950
Paritet+

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

134La

mass number134
neutron number77
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
6,45 ± 0,16 m
spin1
nuclear quadrupole moment
opdagelsesdato1951
Paritet+

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

135La

mass number135
neutron number78
Relative Atomic Mass
g-factor
1,48 ± 0,036
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
18,91 ± 0,02 h
spin5/2
nuclear quadrupole moment
-0,4 ± 0,4
opdagelsesdato1948
Paritet+

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

136La

mass number136
neutron number79
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
9,87 ± 0,03 m
spin1
nuclear quadrupole moment
opdagelsesdato1950
Paritet+

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

137La

mass number137
neutron number80
Relative Atomic Mass
g-factor
0,77028571428571 ± 0,0017142857142857
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
60 ± 20 ky
spin7/2
nuclear quadrupole moment
0,21 ± 0,04
opdagelsesdato1948
Paritet+

decay modeIntensitet
ϵ (electron capture)100%

138La

mass number138
neutron number81
Relative Atomic Mass
g-factor
0,74168 ± 0,00004
natural abundance
0,08881 ± 0,00071
radioaktivitet☢️ radioactive element
halveringstid
103 ± 1 Gy
spin5
nuclear quadrupole moment
0,39 ± 0,03
opdagelsesdato1947
Paritet+

decay modeIntensitet
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
radioaktivitetstable isotope
halveringstidNot Radioactive ☢️
spin7/2
nuclear quadrupole moment
0,206 ± 0,004
opdagelsesdato1924
Paritet+

140La

mass number140
neutron number83
Relative Atomic Mass
g-factor
0,24333333333333 ± 0,005
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
40,289 ± 0,004 h
spin3
nuclear quadrupole moment
0,087 ± 0,013
opdagelsesdato1935
Paritet-

decay modeIntensitet
β (β decay)100%

141La

mass number141
neutron number84
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
3,92 ± 0,03 h
spin7/2
nuclear quadrupole moment
opdagelsesdato1951
Paritet+

decay modeIntensitet
β (β decay)100%

142La

mass number142
neutron number85
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
91,1 ± 0,5 m
spin2
nuclear quadrupole moment
opdagelsesdato1953
Paritet-

decay modeIntensitet
β (β decay)100%

143La

mass number143
neutron number86
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
14,2 ± 0,1 m
spin7/2
nuclear quadrupole moment
opdagelsesdato1951
Paritet

decay modeIntensitet
β (β decay)100%

144La

mass number144
neutron number87
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
44 ± 0,7 s
spin3
nuclear quadrupole moment
opdagelsesdato1967
Paritet-

decay modeIntensitet
β (β decay)100%

145La

mass number145
neutron number88
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
24,8 ± 2 s
spin5/2
nuclear quadrupole moment
opdagelsesdato1974
Paritet+

decay modeIntensitet
β (β decay)100%

146La

mass number146
neutron number89
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
9,9 ± 0,1 s
spin5
nuclear quadrupole moment
opdagelsesdato1970
Paritet-

decay modeIntensitet
β (β decay)100%

147La

mass number147
neutron number90
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
4,026 ± 0,02 s
spin5/2
nuclear quadrupole moment
opdagelsesdato1979
Paritet+

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

148La

mass number148
neutron number91
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
1,414 ± 0,025 s
spin2
nuclear quadrupole moment
opdagelsesdato1969
Paritet-

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

149La

mass number149
neutron number92
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
1,071 ± 0,022 s
spin3/2
nuclear quadrupole moment
opdagelsesdato1979
Paritet-

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

150La

mass number150
neutron number93
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
504 ± 15 ms
spin3
nuclear quadrupole moment
opdagelsesdato1993
Paritet+

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

151La

mass number151
neutron number94
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
465 ± 24 ms
spin1/2
nuclear quadrupole moment
0
opdagelsesdato1994
Paritet+

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

152La

mass number152
neutron number95
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
287 ± 16 ms
spin2
nuclear quadrupole moment
opdagelsesdato1994
Paritet-

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

153La

mass number153
neutron number96
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
245 ± 18 ms
spin1/2
nuclear quadrupole moment
0
opdagelsesdato1994
Paritet+

decay modeIntensitet
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
radioaktivitet☢️ radioactive element
halveringstid
161 ± 15 ms
spin2
nuclear quadrupole moment
opdagelsesdato2017
Paritet-

decay modeIntensitet
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
radioaktivitet☢️ radioactive element
halveringstid
101 ± 28 ms
spin1/2
nuclear quadrupole moment
0
opdagelsesdato2016
Paritet+

decay modeIntensitet
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
radioaktivitet☢️ radioactive element
halveringstid
84 ± 78 ms
spin4
nuclear quadrupole moment
opdagelsesdato2017
Paritet+

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

157La

mass number157
neutron number100
Relative Atomic Mass
g-factor
natural abundance
radioaktivitet☢️ radioactive element
halveringstid
spin1/2
nuclear quadrupole moment
0
opdagelsesdato2018
Paritet+

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

historie

opdager eller opfinderCarl Mosander
fundstedSweden
opdagelsesdato1839
etymologiGreek: lanthanein (to be hidden).
udtaleLAN-the-nem (engelsk)

source

Forekomst
Abundance in Earth's crust
natural abundance (verdenshave)
natural abundance (menneskelige krop)
natural abundance (Meteoroid)
0,000028 %
natural abundance (Solen)
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