Lantan, ²Lanthani

Lantan, ²Lanthani (La)

chemical element with symbol La and atomic number 57
Atomic Number57
Atomic Weight138.90547
Numri i masës139
Group3
Period6
Blockd
protoni57 p+
neutroni82 n0
elektroni57 e-
Animated Bohr model of La (Lantan, ²Lanthani)

Tipar Fizik

Atomic Radius
195 pm
molar volume
covalent radius
180 pm
Metallic Radius
169 pm
ionic radius
103,2 pm
Crystal Radius
117,2 pm
Van der Waals radius
243 pm
density
6,15 g/cm³
Atomic Radii Of The Elements: Lantan, ²Lanthani0255075100125150175200225250pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

energjia
proton affinity
1 013 kJ/mol
electron affinity
ionization energy
ionization energy of La (Lantan, ²Lanthani)
enthalpy of vaporization
402 kJ/mol
enthalpy of fusion
8,5 kJ/mol
standard enthalpy of formation
431 kJ/mol
elektroni
electron shell2, 8, 18, 18, 9, 2
Bohr model: La (Lantan, ²Lanthani)
valence electron2
Lewis structure: La (Lantan, ²Lanthani)
konfigurimi i elektronit[Xe] 5d1 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 5d1 6s2
Enhanced Bohr model of La (Lantan, ²Lanthani)
Orbital Diagram of La (Lantan, ²Lanthani)
oxidation number0, 1, 2, 3
Elektronegativiteti
1.1
Electrophilicity Index
0,894990101871977 eV/particle
fundamental state of matter
gjendja agregate e materiesSolid
gaseous state of matter
Boiling Point
3 737,15 K
Melting Point
1 193,15 K
critical pressure
critical temperature
triple point
appearance
Ngjyra
Silver
appearancesilvery white
refractive index
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
electrical conductivity
1,6 MS/m
electrical resistivity
0,00000061 m Ω
Superpërcjellshmëria
4,88 K
Magnetizimi
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
strukturë
Crystal StructureSimple Hexagonal (HEX)
lattice constant
3,75 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
2,5 MPa
bulk modulus
28 GPa
shear modulus
14 GPa
Young's modulus
37 GPa
Poisson's ratio
0,28
Shpejtësia e zërit
2 475 m/s
klasifikim
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
numër kuantik2D3/2
space group194 (P63/mmc)

Isotopes of Lanthanum

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

116La

Numri i masës116
numri i neutroneve59
relative atomic mass
115,957005 ± 0,000345 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity

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

117La

Numri i masës117
numri i neutroneve60
relative atomic mass
116,950326 ± 0,000215 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
21,7 ± 1,8 ms
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2001
parity+

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

118La

Numri i masës118
numri i neutroneve61
relative atomic mass
117,946731 ± 0,000322 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity-

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

119La

Numri i masës119
numri i neutroneve62
relative atomic mass
118,940934 ± 0,000322 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini11/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity-

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

120La

Numri i masës120
numri i neutroneve63
relative atomic mass
119,938196 ± 0,000322 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,8 ± 0,2 s
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes1984
parity-

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

121La

Numri i masës121
numri i neutroneve64
relative atomic mass
120,933236 ± 0,000322 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
5,3 ± 0,2 s
Spini11/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1988
parity-

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

122La

Numri i masës122
numri i neutroneve65
relative atomic mass
121,93071 ± 0,00032 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
8,6 ± 0,5 s
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes1984
parity-

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

123La

Numri i masës123
numri i neutroneve66
relative atomic mass
122,9263 ± 0,00021 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
17 ± 3 s
Spini11/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1978
parity-

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

124La

Numri i masës124
numri i neutroneve67
relative atomic mass
123,924574275 ± 0,000060836 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
29,21 ± 0,17 s
Spini7
nuclear quadrupole moment
koha e zbulimit apo shpikjes1978
parity

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

125La

Numri i masës125
numri i neutroneve68
relative atomic mass
124,920815931 ± 0,000027909 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
64,8 ± 1,2 s
Spini11/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1973
parity-

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

126La

Numri i masës126
numri i neutroneve69
relative atomic mass
125,919512667 ± 0,000097163 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
54 ± 2 s
Spini5
nuclear quadrupole moment
koha e zbulimit apo shpikjes1961
parity-

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

127La

Numri i masës127
numri i neutroneve70
relative atomic mass
126,916375083 ± 0,000027912 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
5,1 ± 0,1 m
Spini11/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1963
parity-

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

128La

Numri i masës128
numri i neutroneve71
relative atomic mass
127,915592123 ± 0,000058452 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
5,18 ± 0,14 m
Spini5
nuclear quadrupole moment
koha e zbulimit apo shpikjes1961
parity+

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

129La

Numri i masës129
numri i neutroneve72
relative atomic mass
128,912695592 ± 0,000022913 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
11,6 ± 0,2 m
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1963
parity+

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

130La

Numri i masës130
numri i neutroneve73
relative atomic mass
129,912369413 ± 0,000027854 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
8,7 ± 0,1 m
Spini3
nuclear quadrupole moment
koha e zbulimit apo shpikjes1961
parity

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

131La

Numri i masës131
numri i neutroneve74
relative atomic mass
130,91007 ± 0,00003 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
59 ± 2 m
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1951
parity+

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

132La

Numri i masës132
numri i neutroneve75
relative atomic mass
131,910119047 ± 0,000039032 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
4,59 ± 0,04 h
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1951
parity-

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

133La

Numri i masës133
numri i neutroneve76
relative atomic mass
132,908218 ± 0,00003 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,912 ± 0,008 h
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1950
parity+

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

134La

Numri i masës134
numri i neutroneve77
relative atomic mass
133,908514011 ± 0,000021395 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
6,45 ± 0,16 m
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes1951
parity+

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

135La

Numri i masës135
numri i neutroneve78
relative atomic mass
134,906984427 ± 0,000010126 Da
g-factor
1,48 ± 0,036
natural abundance
Radioaktivitet☢️ radioactive element
half-life
18,91 ± 0,02 h
Spini5/2
nuclear quadrupole moment
-0,4 ± 0,4
koha e zbulimit apo shpikjes1948
parity+

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

136La

Numri i masës136
numri i neutroneve79
relative atomic mass
135,907634962 ± 0,000057081 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
9,87 ± 0,03 m
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes1950
parity+

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

137La

Numri i masës137
numri i neutroneve80
relative atomic mass
136,906450438 ± 0,00000176 Da
g-factor
0,77028571428571 ± 0,0017142857142857
natural abundance
Radioaktivitet☢️ radioactive element
half-life
60 ± 20 ky
Spini7/2
nuclear quadrupole moment
0,21 ± 0,04
koha e zbulimit apo shpikjes1948
parity+

decay modeintensitet
ϵ (electron capture)100%

138La

Numri i masës138
numri i neutroneve81
relative atomic mass
137,907124041 ± 0,000000446 Da
g-factor
0,74168 ± 0,00004
natural abundance
0,08881 ± 0,00071
Radioaktivitet☢️ radioactive element
half-life
103 ± 1 Gy
Spini5
nuclear quadrupole moment
0,39 ± 0,03
koha e zbulimit apo shpikjes1947
parity+

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

139La

Numri i masës139
numri i neutroneve82
relative atomic mass
138,906362927 ± 0,000000651 Da
g-factor
0,79402857142857 ± 0,000057142857142857
natural abundance
99,91119 ± 0,00071
Radioaktivitetstable isotope
half-lifeNot Radioactive ☢️
Spini7/2
nuclear quadrupole moment
0,206 ± 0,004
koha e zbulimit apo shpikjes1924
parity+

140La

Numri i masës140
numri i neutroneve83
relative atomic mass
139,909487285 ± 0,000000651 Da
g-factor
0,24333333333333 ± 0,005
natural abundance
Radioaktivitet☢️ radioactive element
half-life
40,289 ± 0,004 h
Spini3
nuclear quadrupole moment
0,087 ± 0,013
koha e zbulimit apo shpikjes1935
parity-

decay modeintensitet
β (β decay)100%

141La

Numri i masës141
numri i neutroneve84
relative atomic mass
140,910971155 ± 0,00000443 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,92 ± 0,03 h
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1951
parity+

decay modeintensitet
β (β decay)100%

142La

Numri i masës142
numri i neutroneve85
relative atomic mass
141,91409076 ± 0,000006748 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
91,1 ± 0,5 m
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1953
parity-

decay modeintensitet
β (β decay)100%

143La

Numri i masës143
numri i neutroneve86
relative atomic mass
142,916079482 ± 0,000007868 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
14,2 ± 0,1 m
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1951
parity

decay modeintensitet
β (β decay)100%

144La

Numri i masës144
numri i neutroneve87
relative atomic mass
143,919645589 ± 0,000013888 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
44 ± 0,7 s
Spini3
nuclear quadrupole moment
koha e zbulimit apo shpikjes1967
parity-

decay modeintensitet
β (β decay)100%

145La

Numri i masës145
numri i neutroneve88
relative atomic mass
144,921808065 ± 0,00001317 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
24,8 ± 2 s
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1974
parity+

decay modeintensitet
β (β decay)100%

146La

Numri i masës146
numri i neutroneve89
relative atomic mass
145,925688017 ± 0,000001797 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
9,9 ± 0,1 s
Spini5
nuclear quadrupole moment
koha e zbulimit apo shpikjes1970
parity-

decay modeintensitet
β (β decay)100%

147La

Numri i masës147
numri i neutroneve90
relative atomic mass
146,9284178 ± 0,0000115 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
4,026 ± 0,02 s
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1979
parity+

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

148La

Numri i masës148
numri i neutroneve91
relative atomic mass
147,9326794 ± 0,0000209 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,414 ± 0,025 s
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1969
parity-

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

149La

Numri i masës149
numri i neutroneve92
relative atomic mass
148,935351259 ± 0,00021499 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,071 ± 0,022 s
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1979
parity-

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

150La

Numri i masës150
numri i neutroneve93
relative atomic mass
149,9395475 ± 0,0000027 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
504 ± 15 ms
Spini3
nuclear quadrupole moment
koha e zbulimit apo shpikjes1993
parity+

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

151La

Numri i masës151
numri i neutroneve94
relative atomic mass
150,942769 ± 0,0004675 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
465 ± 24 ms
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1994
parity+

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

152La

Numri i masës152
numri i neutroneve95
relative atomic mass
151,947085 ± 0,000322 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
287 ± 16 ms
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1994
parity-

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

153La

Numri i masës153
numri i neutroneve96
relative atomic mass
152,950553 ± 0,000322 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
245 ± 18 ms
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1994
parity+

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

154La

Numri i masës154
numri i neutroneve97
relative atomic mass
153,955416 ± 0,000322 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
161 ± 15 ms
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2017
parity-

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

155La

Numri i masës155
numri i neutroneve98
relative atomic mass
154,95928 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
101 ± 28 ms
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2016
parity+

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

156La

Numri i masës156
numri i neutroneve99
relative atomic mass
155,964519 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
84 ± 78 ms
Spini4
nuclear quadrupole moment
koha e zbulimit apo shpikjes2017
parity+

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

157La

Numri i masës157
numri i neutroneve100
relative atomic mass
156,968792 ± 0,000322 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2018
parity+

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

historia

zbuluesCarl Mosander
vendndodhja e zbulimitSweden
koha e zbulimit apo shpikjes1839
EtimologjiaGreek: lanthanein (to be hidden).
pronunciationLAN-the-nem (anglisht)

burim

Abundance
Abundance in Earth's crust
natural abundance (Oqeani)
0,0000034 mg/L
natural abundance (Trupi i njeriut)
natural abundance (meteoroid)
0,000028 %
natural abundance (Diell)
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