Lanthanum, ²Lantan

Lanthanum, ²Lantan (La)

hemijski element sa simbolom La i atomskim brojem 57
Atomic Number57
Atomic Weight138.90547
Maseni broj139
Group3
Period6
Blockd
Proton57 p+
Neutron82 n0
Elektron57 e-
Animated Bohrov model atoma of La (Lanthanum, ²Lantan)

Physical Property

Atomski Radijus
195 pm
Molarni volumen
covalent radius
180 pm
Metallic Radius
169 pm
Ionski radijus
103,2 pm
Crystal Radius
117,2 pm
Van der Waalsov radijus
243 pm
gustoća
6,15 g/cm³
Atomic Radii Of The Elements: Lanthanum, ²Lantan0102030405060708090100110120130140150160170180190200210220230240250pmAtomski RadijusCovalent RadiusMetallic RadiusVan der Waalsov radijus

Chemical Property

energija
proton affinity
1.013 kJ/mol
electron affinity
ionization energy
ionization energy of La (Lanthanum, ²Lantan)
Toplota isparavanja
402 kJ/mol
toplota topljenja
8,5 kJ/mol
standard enthalpy of formation
431 kJ/mol
Elektron
electron shell2, 8, 18, 18, 9, 2
Bohrov model atoma: La (Lanthanum, ²Lantan)
Valentni elektron2
Lewis structure: La (Lanthanum, ²Lantan)
electron configuration[Xe] 5d1 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 5d1 6s2
Enhanced Bohrov model atoma of La (Lanthanum, ²Lantan)
Orbital Diagram of La (Lanthanum, ²Lantan)
oksidacijsko stanje0, 1, 2, 3
Elektronegativnost
1.1
Electrophilicity Index
0,894990101871977 eV/particle
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
3.737,15 K
Melting Point
1.193,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Silver
appearancesilvery white
Indeks prelamanja
thermodynamic material property
Thermal Conductivity
13,4 W/(m K)
thermal expansion
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
Specifična električna provodljivost
1,6 MS/m
electrical resistivity
0,00000061 m Ω
Superprovodljivost
4,88 K
Magnetizam
typeparamagnetic
magnetic susceptibility (Mass)
0,000000011 m³/Kg
magnetic susceptibility (Molar)
0,000000001528 m³/mol
magnetic susceptibility (Volume)
0,00006761
magnetic ordering
Kirijeva tačka
Néel temperature
struktura
Crystal StructureSimple Hexagonal (HEX)
lattice constant
3,75 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
Tvrdoća
2,5 MPa
bulk modulus
28 GPa
shear modulus
14 GPa
Young's modulus
37 GPa
Poisson's ratio
0,28
Brzina zvuka
2.475 m/s
klasifikacija
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
Kvantni brojevi2D3/2
space group194 (P63/mmc)

Isotopes of Lanthanum

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

116La

Maseni broj116
broj neutrona59
relative atomic mass
115,957005 ± 0,000345 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
datum otkrića
parity

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

117La

Maseni broj117
broj neutrona60
relative atomic mass
116,950326 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
21,7 ± 1,8 ms
spin3/2
nuclear quadrupole moment
datum otkrića2001
parity+

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

118La

Maseni broj118
broj neutrona61
relative atomic mass
117,946731 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1
nuclear quadrupole moment
datum otkrića
parity-

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

119La

Maseni broj119
broj neutrona62
relative atomic mass
118,940934 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin11/2
nuclear quadrupole moment
datum otkrića
parity-

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

120La

Maseni broj120
broj neutrona63
relative atomic mass
119,938196 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,8 ± 0,2 s
spin1
nuclear quadrupole moment
datum otkrića1984
parity-

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

121La

Maseni broj121
broj neutrona64
relative atomic mass
120,933236 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,3 ± 0,2 s
spin11/2
nuclear quadrupole moment
datum otkrića1988
parity-

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

122La

Maseni broj122
broj neutrona65
relative atomic mass
121,93071 ± 0,00032 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8,6 ± 0,5 s
spin1
nuclear quadrupole moment
datum otkrića1984
parity-

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

123La

Maseni broj123
broj neutrona66
relative atomic mass
122,9263 ± 0,00021 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
17 ± 3 s
spin11/2
nuclear quadrupole moment
datum otkrića1978
parity-

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

124La

Maseni broj124
broj neutrona67
relative atomic mass
123,924574275 ± 0,000060836 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
29,21 ± 0,17 s
spin7
nuclear quadrupole moment
datum otkrića1978
parity

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

125La

Maseni broj125
broj neutrona68
relative atomic mass
124,920815931 ± 0,000027909 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
64,8 ± 1,2 s
spin11/2
nuclear quadrupole moment
datum otkrića1973
parity-

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

126La

Maseni broj126
broj neutrona69
relative atomic mass
125,919512667 ± 0,000097163 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
54 ± 2 s
spin5
nuclear quadrupole moment
datum otkrića1961
parity-

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

127La

Maseni broj127
broj neutrona70
relative atomic mass
126,916375083 ± 0,000027912 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,1 ± 0,1 m
spin11/2
nuclear quadrupole moment
datum otkrića1963
parity-

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

128La

Maseni broj128
broj neutrona71
relative atomic mass
127,915592123 ± 0,000058452 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,18 ± 0,14 m
spin5
nuclear quadrupole moment
datum otkrića1961
parity+

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

129La

Maseni broj129
broj neutrona72
relative atomic mass
128,912695592 ± 0,000022913 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
11,6 ± 0,2 m
spin3/2
nuclear quadrupole moment
datum otkrića1963
parity+

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

130La

Maseni broj130
broj neutrona73
relative atomic mass
129,912369413 ± 0,000027854 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8,7 ± 0,1 m
spin3
nuclear quadrupole moment
datum otkrića1961
parity

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

131La

Maseni broj131
broj neutrona74
relative atomic mass
130,91007 ± 0,00003 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
59 ± 2 m
spin3/2
nuclear quadrupole moment
datum otkrića1951
parity+

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

132La

Maseni broj132
broj neutrona75
relative atomic mass
131,910119047 ± 0,000039032 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,59 ± 0,04 h
spin2
nuclear quadrupole moment
datum otkrića1951
parity-

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

133La

Maseni broj133
broj neutrona76
relative atomic mass
132,908218 ± 0,00003 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,912 ± 0,008 h
spin5/2
nuclear quadrupole moment
datum otkrića1950
parity+

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

134La

Maseni broj134
broj neutrona77
relative atomic mass
133,908514011 ± 0,000021395 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,45 ± 0,16 m
spin1
nuclear quadrupole moment
datum otkrića1951
parity+

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

135La

Maseni broj135
broj neutrona78
relative atomic mass
134,906984427 ± 0,000010126 Da
g-factor
1,48 ± 0,036
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
18,91 ± 0,02 h
spin5/2
nuclear quadrupole moment
-0,4 ± 0,4
datum otkrića1948
parity+

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

136La

Maseni broj136
broj neutrona79
relative atomic mass
135,907634962 ± 0,000057081 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
9,87 ± 0,03 m
spin1
nuclear quadrupole moment
datum otkrića1950
parity+

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

137La

Maseni broj137
broj neutrona80
relative atomic mass
136,906450438 ± 0,00000176 Da
g-factor
0,77028571428571 ± 0,0017142857142857
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
60 ± 20 ky
spin7/2
nuclear quadrupole moment
0,21 ± 0,04
datum otkrića1948
parity+

decay modeintensity
ϵ (electron capture)100%

138La

Maseni broj138
broj neutrona81
relative atomic mass
137,907124041 ± 0,000000446 Da
g-factor
0,74168 ± 0,00004
natural abundance
0,08881 ± 0,00071
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
103 ± 1 Gy
spin5
nuclear quadrupole moment
0,39 ± 0,03
datum otkrića1947
parity+

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

139La

Maseni broj139
broj neutrona82
relative atomic mass
138,906362927 ± 0,000000651 Da
g-factor
0,79402857142857 ± 0,000057142857142857
natural abundance
99,91119 ± 0,00071
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin7/2
nuclear quadrupole moment
0,206 ± 0,004
datum otkrića1924
parity+

140La

Maseni broj140
broj neutrona83
relative atomic mass
139,909487285 ± 0,000000651 Da
g-factor
0,24333333333333 ± 0,005
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
40,289 ± 0,004 h
spin3
nuclear quadrupole moment
0,087 ± 0,013
datum otkrića1935
parity-

decay modeintensity
β (β decay)100%

141La

Maseni broj141
broj neutrona84
relative atomic mass
140,910971155 ± 0,00000443 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,92 ± 0,03 h
spin7/2
nuclear quadrupole moment
datum otkrića1951
parity+

decay modeintensity
β (β decay)100%

142La

Maseni broj142
broj neutrona85
relative atomic mass
141,91409076 ± 0,000006748 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
91,1 ± 0,5 m
spin2
nuclear quadrupole moment
datum otkrića1953
parity-

decay modeintensity
β (β decay)100%

143La

Maseni broj143
broj neutrona86
relative atomic mass
142,916079482 ± 0,000007868 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
14,2 ± 0,1 m
spin7/2
nuclear quadrupole moment
datum otkrića1951
parity

decay modeintensity
β (β decay)100%

144La

Maseni broj144
broj neutrona87
relative atomic mass
143,919645589 ± 0,000013888 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
44 ± 0,7 s
spin3
nuclear quadrupole moment
datum otkrića1967
parity-

decay modeintensity
β (β decay)100%

145La

Maseni broj145
broj neutrona88
relative atomic mass
144,921808065 ± 0,00001317 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
24,8 ± 2 s
spin5/2
nuclear quadrupole moment
datum otkrića1974
parity+

decay modeintensity
β (β decay)100%

146La

Maseni broj146
broj neutrona89
relative atomic mass
145,925688017 ± 0,000001797 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
9,9 ± 0,1 s
spin5
nuclear quadrupole moment
datum otkrića1970
parity-

decay modeintensity
β (β decay)100%

147La

Maseni broj147
broj neutrona90
relative atomic mass
146,9284178 ± 0,0000115 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,026 ± 0,02 s
spin5/2
nuclear quadrupole moment
datum otkrića1979
parity+

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

148La

Maseni broj148
broj neutrona91
relative atomic mass
147,9326794 ± 0,0000209 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,414 ± 0,025 s
spin2
nuclear quadrupole moment
datum otkrića1969
parity-

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

149La

Maseni broj149
broj neutrona92
relative atomic mass
148,935351259 ± 0,00021499 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,071 ± 0,022 s
spin3/2
nuclear quadrupole moment
datum otkrića1979
parity-

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

150La

Maseni broj150
broj neutrona93
relative atomic mass
149,9395475 ± 0,0000027 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
504 ± 15 ms
spin3
nuclear quadrupole moment
datum otkrića1993
parity+

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

151La

Maseni broj151
broj neutrona94
relative atomic mass
150,942769 ± 0,0004675 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
465 ± 24 ms
spin1/2
nuclear quadrupole moment
0
datum otkrića1994
parity+

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

152La

Maseni broj152
broj neutrona95
relative atomic mass
151,947085 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
287 ± 16 ms
spin2
nuclear quadrupole moment
datum otkrića1994
parity-

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

153La

Maseni broj153
broj neutrona96
relative atomic mass
152,950553 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
245 ± 18 ms
spin1/2
nuclear quadrupole moment
0
datum otkrića1994
parity+

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

154La

Maseni broj154
broj neutrona97
relative atomic mass
153,955416 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
161 ± 15 ms
spin2
nuclear quadrupole moment
datum otkrića2017
parity-

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

155La

Maseni broj155
broj neutrona98
relative atomic mass
154,95928 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
101 ± 28 ms
spin1/2
nuclear quadrupole moment
0
datum otkrića2016
parity+

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

156La

Maseni broj156
broj neutrona99
relative atomic mass
155,964519 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
84 ± 78 ms
spin4
nuclear quadrupole moment
datum otkrića2017
parity+

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

157La

Maseni broj157
broj neutrona100
relative atomic mass
156,968792 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
datum otkrića2018
parity+

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

historija

otkrivač ili izumiteljCarl Mosander
mjesto otkrićaSweden
datum otkrića1839
EtimologijaGreek: lanthanein (to be hidden).
pronunciationLAN-the-nem (engleski)

izvor

Abundance
Abundance in Earth's crust
natural abundance (okean)
0,0000034 mg/L
natural abundance (ljudsko tijelo)
natural abundance (Meteoroidi)
0,000028 %
natural abundance (Sunce)
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