Lantan

Lantan (La)

chemical element with symbol La and atomic number 57
Atomic Number57
Atomic Weight138.90547
mass number139
Group3
Period6
Blockd
Proton57 p+
Neytron82 n0
Elektron57 e-
Animated Bohr model of La (Lantan)

Fizik Xossa

Atom Radiusi
195 pm
Molyar hajm
Kovalentlik Radiusi
180 pm
Metallic Radius
169 pm
Ion radiuslar
103,2 pm
Crystal Radius
117,2 pm
Van der Waals radius
243 pm
density
6,15 g/cm³
Atomic Radii Of The Elements: Lantan0102030405060708090100110120130140150160170180190200210220230240250pmAtom RadiusiKovalentlik RadiusiMetallic RadiusVan der Waals radius

Chemical Property

energiya
proton affinity
1 013 kJ/mol
electron affinity
ionization energy
ionization energy of La (Lantan)
Solishtirma qaynash issiqligi
402 kJ/mol
solishtirma erish issiqligi
8,5 kJ/mol
standard enthalpy of formation
431 kJ/mol
Elektron
Ion asboblar2, 8, 18, 18, 9, 2
Bohr model: La (Lantan)
valence electron2
Lewis structure: La (Lantan)
electron configuration[Xe] 5d1 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 5d1 6s2
Enhanced Bohr model of La (Lantan)
Orbital Diagram of La (Lantan)
Oksidlanish darajasi0, 1, 2, 3
Elektrmanfiylik
1.1
Electrophilicity Index
0,894990101871977 eV/particle
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
3 737,15 K
Melting Point
1 193,15 K
critical pressure
critical temperature
triple point
appearance
Rang
Silver
appearancesilvery white
refractive index
thermodynamic material property
Thermal Conductivity
13,4 W/(m K)
Issiqlikdan kengayish
0,0000121 1/K
molar heat capacity
27,11 J/(mol K)
Specific Heat Capacity
0,195 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
1,6 MS/m
electrical resistivity
0,00000061 m Ω
superconductivity
4,88 K
Magnetizm
typeparamagnetic
magnetic susceptibility (Mass)
0,000000011 m³/Kg
magnetic susceptibility (Molar)
0,000000001528 m³/mol
magnetic susceptibility (Volume)
0,00006761
magnetic ordering
Kyuri nuqtasi
Néel temperature
Tuzilma
Crystal StructureSimple Hexagonal (HEX)
Kristall panjara davri
3,75 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
Qattiqlik
2,5 MPa
bulk modulus
28 GPa
shear modulus
14 GPa
Yung moduli
37 GPa
Poisson's ratio
0,28
Tovush tezligi
2 475 m/s
klassifikatsiya
CategoryLanthanides, Lanthanides
CAS GroupIIIA
IUPAC GroupIIIB
Glawe Number32
Mendeleev Number13
Pettifor Number33
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

other

Gas Basicity
991,9 kJ/mol
polarizability
215 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
8,98
Neutron Mass Absorption
0,0023
Atom kvant sonlari2D3/2
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
Nisbiy atom massa
115,957005 ± 0,000345 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin
nuclear quadrupole moment
time of discovery or invention
parity

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

117La

mass number117
neutron number60
Nisbiy atom massa
116,950326 ± 0,000215 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
21,7 ± 1,8 ms
spin3/2
nuclear quadrupole moment
time of discovery or invention2001
parity+

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

118La

mass number118
neutron number61
Nisbiy atom massa
117,946731 ± 0,000322 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin1
nuclear quadrupole moment
time of discovery or invention
parity-

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

119La

mass number119
neutron number62
Nisbiy atom massa
118,940934 ± 0,000322 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin11/2
nuclear quadrupole moment
time of discovery or invention
parity-

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

120La

mass number120
neutron number63
Nisbiy atom massa
119,938196 ± 0,000322 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
2,8 ± 0,2 s
spin1
nuclear quadrupole moment
time of discovery or invention1984
parity-

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

121La

mass number121
neutron number64
Nisbiy atom massa
120,933236 ± 0,000322 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
5,3 ± 0,2 s
spin11/2
nuclear quadrupole moment
time of discovery or invention1988
parity-

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

122La

mass number122
neutron number65
Nisbiy atom massa
121,93071 ± 0,00032 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
8,6 ± 0,5 s
spin1
nuclear quadrupole moment
time of discovery or invention1984
parity-

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

123La

mass number123
neutron number66
Nisbiy atom massa
122,9263 ± 0,00021 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
17 ± 3 s
spin11/2
nuclear quadrupole moment
time of discovery or invention1978
parity-

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

124La

mass number124
neutron number67
Nisbiy atom massa
123,924574275 ± 0,000060836 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
29,21 ± 0,17 s
spin7
nuclear quadrupole moment
time of discovery or invention1978
parity

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

125La

mass number125
neutron number68
Nisbiy atom massa
124,920815931 ± 0,000027909 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
64,8 ± 1,2 s
spin11/2
nuclear quadrupole moment
time of discovery or invention1973
parity-

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

126La

mass number126
neutron number69
Nisbiy atom massa
125,919512667 ± 0,000097163 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
54 ± 2 s
spin5
nuclear quadrupole moment
time of discovery or invention1961
parity-

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

127La

mass number127
neutron number70
Nisbiy atom massa
126,916375083 ± 0,000027912 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
5,1 ± 0,1 m
spin11/2
nuclear quadrupole moment
time of discovery or invention1963
parity-

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

128La

mass number128
neutron number71
Nisbiy atom massa
127,915592123 ± 0,000058452 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
5,18 ± 0,14 m
spin5
nuclear quadrupole moment
time of discovery or invention1961
parity+

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

129La

mass number129
neutron number72
Nisbiy atom massa
128,912695592 ± 0,000022913 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
11,6 ± 0,2 m
spin3/2
nuclear quadrupole moment
time of discovery or invention1963
parity+

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

130La

mass number130
neutron number73
Nisbiy atom massa
129,912369413 ± 0,000027854 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
8,7 ± 0,1 m
spin3
nuclear quadrupole moment
time of discovery or invention1961
parity

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

131La

mass number131
neutron number74
Nisbiy atom massa
130,91007 ± 0,00003 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
59 ± 2 m
spin3/2
nuclear quadrupole moment
time of discovery or invention1951
parity+

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

132La

mass number132
neutron number75
Nisbiy atom massa
131,910119047 ± 0,000039032 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
4,59 ± 0,04 h
spin2
nuclear quadrupole moment
time of discovery or invention1951
parity-

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

133La

mass number133
neutron number76
Nisbiy atom massa
132,908218 ± 0,00003 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
3,912 ± 0,008 h
spin5/2
nuclear quadrupole moment
time of discovery or invention1950
parity+

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

134La

mass number134
neutron number77
Nisbiy atom massa
133,908514011 ± 0,000021395 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
6,45 ± 0,16 m
spin1
nuclear quadrupole moment
time of discovery or invention1951
parity+

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

135La

mass number135
neutron number78
Nisbiy atom massa
134,906984427 ± 0,000010126 Da
g-factor
1,48 ± 0,036
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
18,91 ± 0,02 h
spin5/2
nuclear quadrupole moment
-0,4 ± 0,4
time of discovery or invention1948
parity+

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

136La

mass number136
neutron number79
Nisbiy atom massa
135,907634962 ± 0,000057081 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
9,87 ± 0,03 m
spin1
nuclear quadrupole moment
time of discovery or invention1950
parity+

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

137La

mass number137
neutron number80
Nisbiy atom massa
136,906450438 ± 0,00000176 Da
g-factor
0,77028571428571 ± 0,0017142857142857
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
60 ± 20 ky
spin7/2
nuclear quadrupole moment
0,21 ± 0,04
time of discovery or invention1948
parity+

decay modeintensity
ϵ (electron capture)100%

138La

mass number138
neutron number81
Nisbiy atom massa
137,907124041 ± 0,000000446 Da
g-factor
0,74168 ± 0,00004
natural abundance
0,08881 ± 0,00071
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
103 ± 1 Gy
spin5
nuclear quadrupole moment
0,39 ± 0,03
time of discovery or invention1947
parity+

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

139La

mass number139
neutron number82
Nisbiy atom massa
138,906362927 ± 0,000000651 Da
g-factor
0,79402857142857 ± 0,000057142857142857
natural abundance
99,91119 ± 0,00071
Radioaktivlikstable isotope
Yarim yemirilish davriNot Radioactive ☢️
spin7/2
nuclear quadrupole moment
0,206 ± 0,004
time of discovery or invention1924
parity+

140La

mass number140
neutron number83
Nisbiy atom massa
139,909487285 ± 0,000000651 Da
g-factor
0,24333333333333 ± 0,005
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
40,289 ± 0,004 h
spin3
nuclear quadrupole moment
0,087 ± 0,013
time of discovery or invention1935
parity-

decay modeintensity
β (β decay)100%

141La

mass number141
neutron number84
Nisbiy atom massa
140,910971155 ± 0,00000443 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
3,92 ± 0,03 h
spin7/2
nuclear quadrupole moment
time of discovery or invention1951
parity+

decay modeintensity
β (β decay)100%

142La

mass number142
neutron number85
Nisbiy atom massa
141,91409076 ± 0,000006748 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
91,1 ± 0,5 m
spin2
nuclear quadrupole moment
time of discovery or invention1953
parity-

decay modeintensity
β (β decay)100%

143La

mass number143
neutron number86
Nisbiy atom massa
142,916079482 ± 0,000007868 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
14,2 ± 0,1 m
spin7/2
nuclear quadrupole moment
time of discovery or invention1951
parity

decay modeintensity
β (β decay)100%

144La

mass number144
neutron number87
Nisbiy atom massa
143,919645589 ± 0,000013888 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
44 ± 0,7 s
spin3
nuclear quadrupole moment
time of discovery or invention1967
parity-

decay modeintensity
β (β decay)100%

145La

mass number145
neutron number88
Nisbiy atom massa
144,921808065 ± 0,00001317 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
24,8 ± 2 s
spin5/2
nuclear quadrupole moment
time of discovery or invention1974
parity+

decay modeintensity
β (β decay)100%

146La

mass number146
neutron number89
Nisbiy atom massa
145,925688017 ± 0,000001797 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
9,9 ± 0,1 s
spin5
nuclear quadrupole moment
time of discovery or invention1970
parity-

decay modeintensity
β (β decay)100%

147La

mass number147
neutron number90
Nisbiy atom massa
146,9284178 ± 0,0000115 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
4,026 ± 0,02 s
spin5/2
nuclear quadrupole moment
time of discovery or invention1979
parity+

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

148La

mass number148
neutron number91
Nisbiy atom massa
147,9326794 ± 0,0000209 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
1,414 ± 0,025 s
spin2
nuclear quadrupole moment
time of discovery or invention1969
parity-

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

149La

mass number149
neutron number92
Nisbiy atom massa
148,935351259 ± 0,00021499 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
1,071 ± 0,022 s
spin3/2
nuclear quadrupole moment
time of discovery or invention1979
parity-

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

150La

mass number150
neutron number93
Nisbiy atom massa
149,9395475 ± 0,0000027 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
504 ± 15 ms
spin3
nuclear quadrupole moment
time of discovery or invention1993
parity+

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

151La

mass number151
neutron number94
Nisbiy atom massa
150,942769 ± 0,0004675 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
465 ± 24 ms
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1994
parity+

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

152La

mass number152
neutron number95
Nisbiy atom massa
151,947085 ± 0,000322 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
287 ± 16 ms
spin2
nuclear quadrupole moment
time of discovery or invention1994
parity-

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

153La

mass number153
neutron number96
Nisbiy atom massa
152,950553 ± 0,000322 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
245 ± 18 ms
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1994
parity+

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

154La

mass number154
neutron number97
Nisbiy atom massa
153,955416 ± 0,000322 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
161 ± 15 ms
spin2
nuclear quadrupole moment
time of discovery or invention2017
parity-

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

155La

mass number155
neutron number98
Nisbiy atom massa
154,95928 ± 0,000429 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
101 ± 28 ms
spin1/2
nuclear quadrupole moment
0
time of discovery or invention2016
parity+

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

156La

mass number156
neutron number99
Nisbiy atom massa
155,964519 ± 0,000429 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
84 ± 78 ms
spin4
nuclear quadrupole moment
time of discovery or invention2017
parity+

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

157La

mass number157
neutron number100
Nisbiy atom massa
156,968792 ± 0,000322 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin1/2
nuclear quadrupole moment
0
time of discovery or invention2018
parity+

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

tarix

discoverer or inventorCarl Mosander
location of discoverySweden
time of discovery or invention1839
EtimologiyaGreek: lanthanein (to be hidden).
pronunciationLAN-the-nem (inglizcha)

source

Abundance
Abundance in Earth's crust
natural abundance (Okean)
0,0000034 mg/L
natural abundance (Inson tanasi)
natural abundance (Meteoroid)
0,000028 %
natural abundance (Quyosh)
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