Lanthan (La)

grundstof med atomnummer 57

Atomnummer	57
Atommasse	138.90547
mass number	139

Gruppe	3
Periode	6
Blok	d

proton	57 p⁺
neutron	82 n⁰
elektron	57 e^-

Animated Bohrs atommodel of La (Lanthan)

Fysisk Egenskab

Atomradius	195 pm 284 pm
molar volume	22,5 cm³/mol
Kovalent Radius	180 pm 139 pm 139 pm 207 pm
Metallic Radius	169 pm 187 pm
Ionisk radius	103,2 pm 110 pm 116 pm 121,6 pm 127 pm 136 pm
Crystal Radius	117,2 pm 124 pm 130 pm 135,6 pm 141 pm 150 pm
Van der Waals-radius	250 pm 243 pm 278 pm 352,2 pm
massefylde	6,15 g/cm³ 5.940 kg/m³

Kemisk Egenskab

{ERROR}

energi

proton affinity	1.013 kJ/mol
electron affinity	0,47 eV/particle
ioniseringsenergi	5,5769 eV/particle 11,18492 eV/particle 19,1773 eV/particle 49,95 eV/particle 61,6 eV/particle 74 eV/particle 88 eV/particle 105 eV/particle 119 eV/particle 151,42 eV/particle 168,77 eV/particle 275 eV/particle 303 eV/particle 332 eV/particle 364 eV/particle 393 eV/particle 431 eV/particle 464 eV/particle 498 eV/particle 533 eV/particle 566 eV/particle 696 eV/particle 731 eV/particle 770 eV/particle 806 eV/particle 865 eV/particle 906 eV/particle 995 eV/particle 1.039,09 eV/particle 1.800 eV/particle 1.884 eV/particle 1.974 eV/particle 2.069 eV/particle 2.162 eV/particle 2.259 eV/particle 2.377 eV/particle 2.473 eV/particle 2.577 eV/particle 2.674 eV/particle 2.950 eV/particle 3.036 eV/particle 3.133 eV/particle 3.222 eV/particle 3.416 eV/particle 3.515 eV/particle 3.704 eV/particle 3.800 eV/particle 8.669 eV/particle 8.914 eV/particle 9.184 eV/particle 9.437 eV/particle 10.136 eV/particle 10.426 eV/particle 10.789 eV/particle 11.033,4 eV/particle 45.144,994 eV/particle 46.245,6 eV/particle

Fordampningsvarme	402 kJ/mol
smeltevarme	8,5 kJ/mol
standard enthalpy of formation	431 kJ/mol
elektron

Elektronskal	2, 8, 18, 18, 9, 2

Valenselektron	2 ⓘ

electron configuration	[Xe] 5d¹ 6s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 5d¹ 6s²

Oxidationstrin	0, 1, 2, 3
Elektronegativitet	0.163142 1.1
Electrophilicity Index	0,894990101871977 eV/particle
fundamental state of matter

stoffase
gaseous state of matter
Kogepunkt	3.737,15 K
Smeltepunkt	1.193,15 K
critical pressure
critical temperature
trippelpunkt
appearance
farve	Sort #ff1493 #70d4ff #70d4ff
appearance	silvery white
Brydningsindeks
materialeegenskab
Varmeledningsevne	13,4 W/(m K)
Termisk ekspansion	0,0000121 1/K
molar heat capacity	27,11 J/(mol K)
Varmefylde	0,195 J/(g⋅K)
Adiabateksponenten
electrical properties
type	Conductor
specifik ledningsevne	1,6 MS/m
Elektrisk resistivitet	0,00000061 Ω*m
superledning	4,88 K
Magnetisme
type	paramagnetic
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
Krystalstruktur	{ERROR}
lattice constant	3,75 Å
Lattice Angles	π/2, π/2, 2 π/3
mechanical property
hårdhed	363 MPa 2,5 MPa 491 MPa
Kompressibilitetsmodul	28 GPa
Forskydningsmodul	14 GPa
E-modul	37 GPa
Poissons forhold	0,28
speed of sound	2.475 m/s
klassificering
Kategori	Actinider, Lanthanides
CAS Group	IIIA
IUPAC Group	IIIB
Glawe Number	32
Mendeleev Number	13
Pettifor Number	33
Geochemical Class	rare earth & related
Goldschmidt classification	litophile

øvrige

Gas Basicity	991,9 kJ/mol
polarizability	215 ± 20 a₀
C6 Dispersion Coefficient	3.730 a₀
allotrope
Neutron cross section	8,98
Neutron Mass Absorption	0,0023
quantum number	2D3/2
rumgruppe	194 (P63/mmc)

Isotopes of Lanthanum

Stable Isotopes	1
Unstable Isotopes	41
Natural Isotopes	2

¹¹⁶La

mass number	116
neutron number	59
Relative Atomic Mass	115,957005 ± 0,000345 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid
spin
nuclear quadrupole moment
opdagelsesdato
Paritet

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

¹¹⁷La

mass number	117
neutron number	60
Relative Atomic Mass	116,950326 ± 0,000215 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	21,7 ± 1,8 ms
spin	3/2
nuclear quadrupole moment
opdagelsesdato	2001
Paritet	+

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

¹¹⁸La

mass number	118
neutron number	61
Relative Atomic Mass	117,946731 ± 0,000322 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid
spin	1
nuclear quadrupole moment
opdagelsesdato
Paritet	-

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

¹¹⁹La

mass number	119
neutron number	62
Relative Atomic Mass	118,940934 ± 0,000322 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid
spin	11/2
nuclear quadrupole moment
opdagelsesdato
Paritet	-

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

¹²⁰La

mass number	120
neutron number	63
Relative Atomic Mass	119,938196 ± 0,000322 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	2,8 ± 0,2 s
spin	1
nuclear quadrupole moment
opdagelsesdato	1984
Paritet	-

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

¹²¹La

mass number	121
neutron number	64
Relative Atomic Mass	120,933236 ± 0,000322 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	5,3 ± 0,2 s
spin	11/2
nuclear quadrupole moment
opdagelsesdato	1988
Paritet	-

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

¹²²La

mass number	122
neutron number	65
Relative Atomic Mass	121,93071 ± 0,00032 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	8,6 ± 0,5 s
spin	1
nuclear quadrupole moment
opdagelsesdato	1984
Paritet	-

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

¹²³La

mass number	123
neutron number	66
Relative Atomic Mass	122,9263 ± 0,00021 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	17 ± 3 s
spin	11/2
nuclear quadrupole moment
opdagelsesdato	1978
Paritet	-

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²⁴La

mass number	124
neutron number	67
Relative Atomic Mass	123,924574275 ± 0,000060836 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	29,21 ± 0,17 s
spin	7
nuclear quadrupole moment
opdagelsesdato	1978
Paritet

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²⁵La

mass number	125
neutron number	68
Relative Atomic Mass	124,920815931 ± 0,000027909 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	64,8 ± 1,2 s
spin	11/2
nuclear quadrupole moment
opdagelsesdato	1973
Paritet	-

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²⁶La

mass number	126
neutron number	69
Relative Atomic Mass	125,919512667 ± 0,000097163 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	54 ± 2 s
spin	5
nuclear quadrupole moment
opdagelsesdato	1961
Paritet	-

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²⁷La

mass number	127
neutron number	70
Relative Atomic Mass	126,916375083 ± 0,000027912 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	5,1 ± 0,1 m
spin	11/2
nuclear quadrupole moment
opdagelsesdato	1963
Paritet	-

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²⁸La

mass number	128
neutron number	71
Relative Atomic Mass	127,915592123 ± 0,000058452 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	5,18 ± 0,14 m
spin	5
nuclear quadrupole moment
opdagelsesdato	1961
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²⁹La

mass number	129
neutron number	72
Relative Atomic Mass	128,912695592 ± 0,000022913 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	11,6 ± 0,2 m
spin	3/2
nuclear quadrupole moment
opdagelsesdato	1963
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹³⁰La

mass number	130
neutron number	73
Relative Atomic Mass	129,912369413 ± 0,000027854 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	8,7 ± 0,1 m
spin	3
nuclear quadrupole moment
opdagelsesdato	1961
Paritet

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹³¹La

mass number	131
neutron number	74
Relative Atomic Mass	130,91007 ± 0,00003 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	59 ± 2 m
spin	3/2
nuclear quadrupole moment
opdagelsesdato	1951
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹³²La

mass number	132
neutron number	75
Relative Atomic Mass	131,910119047 ± 0,000039032 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	4,59 ± 0,04 h
spin	2
nuclear quadrupole moment
opdagelsesdato	1951
Paritet	-

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹³³La

mass number	133
neutron number	76
Relative Atomic Mass	132,908218 ± 0,00003 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	3,912 ± 0,008 h
spin	5/2
nuclear quadrupole moment
opdagelsesdato	1950
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹³⁴La

mass number	134
neutron number	77
Relative Atomic Mass	133,908514011 ± 0,000021395 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	6,45 ± 0,16 m
spin	1
nuclear quadrupole moment
opdagelsesdato	1951
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹³⁵La

mass number	135
neutron number	78
Relative Atomic Mass	134,906984427 ± 0,000010126 Da
g-factor	1,48 ± 0,036
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	18,91 ± 0,02 h
spin	5/2
nuclear quadrupole moment	-0,4 ± 0,4
opdagelsesdato	1948
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹³⁶La

mass number	136
neutron number	79
Relative Atomic Mass	135,907634962 ± 0,000057081 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	9,87 ± 0,03 m
spin	1
nuclear quadrupole moment
opdagelsesdato	1950
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹³⁷La

mass number	137
neutron number	80
Relative Atomic Mass	136,906450438 ± 0,00000176 Da
g-factor	0,77028571428571 ± 0,0017142857142857
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	60 ± 20 ky
spin	7/2
nuclear quadrupole moment	0,21 ± 0,04
opdagelsesdato	1948
Paritet	+

decay mode	Intensitet
ϵ (electron capture)	100%

¹³⁸La

mass number	138
neutron number	81
Relative Atomic Mass	137,907124041 ± 0,000000446 Da
g-factor	0,74168 ± 0,00004
natural abundance	0,08881 ± 0,00071
radioaktivitet	☢️ radioactive element
halveringstid	103 ± 1 Gy
spin	5
nuclear quadrupole moment	0,39 ± 0,03
opdagelsesdato	1947
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	65.5%
β⁻ (β⁻ decay)	34.5%

¹³⁹La

mass number	139
neutron number	82
Relative Atomic Mass	138,906362927 ± 0,000000651 Da
g-factor	0,79402857142857 ± 0,000057142857142857
natural abundance	99,91119 ± 0,00071
radioaktivitet	stable isotope
halveringstid	Not Radioactive ☢️
spin	7/2
nuclear quadrupole moment	0,206 ± 0,004
opdagelsesdato	1924
Paritet	+

¹⁴⁰La

mass number	140
neutron number	83
Relative Atomic Mass	139,909487285 ± 0,000000651 Da
g-factor	0,24333333333333 ± 0,005
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	40,289 ± 0,004 h
spin	3
nuclear quadrupole moment	0,087 ± 0,013
opdagelsesdato	1935
Paritet	-

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁴¹La

mass number	141
neutron number	84
Relative Atomic Mass	140,910971155 ± 0,00000443 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	3,92 ± 0,03 h
spin	7/2
nuclear quadrupole moment
opdagelsesdato	1951
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁴²La

mass number	142
neutron number	85
Relative Atomic Mass	141,91409076 ± 0,000006748 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	91,1 ± 0,5 m
spin	2
nuclear quadrupole moment
opdagelsesdato	1953
Paritet	-

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁴³La

mass number	143
neutron number	86
Relative Atomic Mass	142,916079482 ± 0,000007868 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	14,2 ± 0,1 m
spin	7/2
nuclear quadrupole moment
opdagelsesdato	1951
Paritet

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁴⁴La

mass number	144
neutron number	87
Relative Atomic Mass	143,919645589 ± 0,000013888 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	44 ± 0,7 s
spin	3
nuclear quadrupole moment
opdagelsesdato	1967
Paritet	-

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁴⁵La

mass number	145
neutron number	88
Relative Atomic Mass	144,921808065 ± 0,00001317 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	24,8 ± 2 s
spin	5/2
nuclear quadrupole moment
opdagelsesdato	1974
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁴⁶La

mass number	146
neutron number	89
Relative Atomic Mass	145,925688017 ± 0,000001797 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	9,9 ± 0,1 s
spin	5
nuclear quadrupole moment
opdagelsesdato	1970
Paritet	-

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁴⁷La

mass number	147
neutron number	90
Relative Atomic Mass	146,9284178 ± 0,0000115 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	4,026 ± 0,02 s
spin	5/2
nuclear quadrupole moment
opdagelsesdato	1979
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.041%

¹⁴⁸La

mass number	148
neutron number	91
Relative Atomic Mass	147,9326794 ± 0,0000209 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	1,414 ± 0,025 s
spin	2
nuclear quadrupole moment
opdagelsesdato	1969
Paritet	-

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.18%

¹⁴⁹La

mass number	149
neutron number	92
Relative Atomic Mass	148,935351259 ± 0,00021499 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	1,071 ± 0,022 s
spin	3/2
nuclear quadrupole moment
opdagelsesdato	1979
Paritet	-

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	1.43%

¹⁵⁰La

mass number	150
neutron number	93
Relative Atomic Mass	149,9395475 ± 0,0000027 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	504 ± 15 ms
spin	3
nuclear quadrupole moment
opdagelsesdato	1993
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	2.7%

¹⁵¹La

mass number	151
neutron number	94
Relative Atomic Mass	150,942769 ± 0,0004675 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	465 ± 24 ms
spin	1/2
nuclear quadrupole moment	0
opdagelsesdato	1994
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

¹⁵²La

mass number	152
neutron number	95
Relative Atomic Mass	151,947085 ± 0,000322 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	287 ± 16 ms
spin	2
nuclear quadrupole moment
opdagelsesdato	1994
Paritet	-

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

¹⁵³La

mass number	153
neutron number	96
Relative Atomic Mass	152,950553 ± 0,000322 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	245 ± 18 ms
spin	1/2
nuclear quadrupole moment	0
opdagelsesdato	1994
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹⁵⁴La

mass number	154
neutron number	97
Relative Atomic Mass	153,955416 ± 0,000322 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	161 ± 15 ms
spin	2
nuclear quadrupole moment
opdagelsesdato	2017
Paritet	-

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹⁵⁵La

mass number	155
neutron number	98
Relative Atomic Mass	154,95928 ± 0,000429 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	101 ± 28 ms
spin	1/2
nuclear quadrupole moment	0
opdagelsesdato	2016
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹⁵⁶La

mass number	156
neutron number	99
Relative Atomic Mass	155,964519 ± 0,000429 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	84 ± 78 ms
spin	4
nuclear quadrupole moment
opdagelsesdato	2017
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

¹⁵⁷La

mass number	157
neutron number	100
Relative Atomic Mass	156,968792 ± 0,000322 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid
spin	1/2
nuclear quadrupole moment	0
opdagelsesdato	2018
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)

historie

opdager eller opfinder	Carl Mosander
fundsted	Sweden
opdagelsesdato	1839
etymologi	Greek: lanthanein (to be hidden).
udtale	LAN-the-nem (engelsk)

source

Forekomst
Abundance in Earth's crust	39 mg/kg
natural abundance (verdenshave)	0,0000034 mg/L
natural abundance (menneskelige krop)
natural abundance (Meteoroid)	0,000028 %
natural abundance (Solen)	0,0000002 %
Abundance in Universe	0,0000002 %

Nuclear Screening Constants

1	s	1.1317
2	p	4.2044
2	s	15.0466
3	d	13.9398
3	p	18.8604
3	s	19.0569
4	d	32.2748
4	f	55.64
4	p	29.2936
4	s	28.2036
5	p	41.104
5	s	39.189
6	s	47.688

Lanthan on ChemicalAid

Lanthan (La)

Fysisk Egenskab

Kemisk Egenskab

øvrige

Isotopes of Lanthanum

116La

117La

118La

119La

120La

121La

122La

123La

124La

125La

126La

127La

128La

129La

130La

131La

132La

133La

134La

135La

136La

137La

138La

139La

140La

141La

142La

143La

144La

145La

146La

147La

148La

149La

150La

151La

152La

153La

154La

155La

156La

157La

historie

source

Nuclear Screening Constants

¹¹⁶La

¹¹⁷La

¹¹⁸La

¹¹⁹La

¹²⁰La

¹²¹La

¹²²La

¹²³La

¹²⁴La

¹²⁵La

¹²⁶La

¹²⁷La

¹²⁸La

¹²⁹La

¹³⁰La

¹³¹La

¹³²La

¹³³La

¹³⁴La

¹³⁵La

¹³⁶La

¹³⁷La

¹³⁸La

¹³⁹La

¹⁴⁰La

¹⁴¹La

¹⁴²La

¹⁴³La

¹⁴⁴La

¹⁴⁵La

¹⁴⁶La

¹⁴⁷La

¹⁴⁸La

¹⁴⁹La

¹⁵⁰La

¹⁵¹La

¹⁵²La

¹⁵³La

¹⁵⁴La

¹⁵⁵La

¹⁵⁶La

¹⁵⁷La