Lantan

Lantan (La)

chemical element with symbol La and atomic number 57
Atomski broj57
Relativna atomska masa138.90547
Maseni broj139
Skupina3
Perioda6
Blokd
proton57 p+
neutron82 n0
elektron57 e-
Animated Bohrov model atoma of La (Lantan)

Physical Property

Atomski Radijus
195 pm
Molni volumen
Kovalentni Radijus
180 pm
Metallic Radius
169 pm
Ionski radijus
103,2 pm
Crystal Radius
117,2 pm
Van der Waals radius
243 pm
gustoća
6,15 g/cm³
Atomic Radii Of The Elements: Lantan0255075100125150175200225250pmAtomski RadijusKovalentni RadijusMetallic RadiusVan der Waals radius

Kemijsko Svojstvo

energija
proton affinity
1.013 kJ/mol
Elektronski afinitet
ionization energy
ionization energy of La (Lantan)
Toplina isparivanja
402 kJ/mol
toplina taljenja
8,5 kJ/mol
standard enthalpy of formation
431 kJ/mol
elektron
Elektronska ljuska2, 8, 18, 18, 9, 2
Bohrov model atoma: 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 Bohrov model atoma of La (Lantan)
Orbital Diagram of La (Lantan)
Oksidacijski broj0, 1, 2, 3
Elektronegativnost
1.1
Electrophilicity Index
0,894990101871977 eV/particle
fundamental state of matter
agregatno stanjeČvrsto
gaseous state of matter
Vrelište
3.737,15 K
Talište
1.193,15 K
critical pressure
critical temperature
Trojna točka
appearance
boja
Srebrna
appearancesilvery white
Indeks prelamanja
thermodynamic material property
Toplinska vodljivost
13,4 W/(m K)
Toplinsko istezanje
0,0000121 1/K
molar heat capacity
27,11 J/(mol K)
Specifični toplinski kapacitet
0,195 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
1,6 MS/m
Električna otpornost i provodnost
0,00000061 m Ω
Supravodljivost
4,88 K
Magnetizam
typeparamagnetic
Magnetna susceptibilnost (Mass)
0,000000011 m³/Kg
Magnetna susceptibilnost (Molar)
0,000000001528 m³/mol
Magnetna susceptibilnost (Volume)
0,00006761
magnetic ordering
Curieva temperatura
Néel temperature
struktura
Kristalna strukturaJednostavna heksagonska (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
Youngov modul elastičnosti
37 GPa
Poissonov omjer
0,28
brzina zvuka
2.475 m/s
classification
KategorijaLantanoidi, 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
Nuklearni udarni presjek
8,98
Neutron Mass Absorption
0,0023
Kvantni brojevi2D3/2
space group194 (P63/mmc)

Isotopes of Lanthanum

Stabilni izotopi1
Nestabilni izotopi41
Natural Isotopes2
Isotopic Composition13999.91%13999.91%1380.09%1380.09%

116La

Maseni broj116
neutron number59
Relativna atomska masa
115,957005 ± 0,000345 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
vrijeme otkrića ili izuma
Parnost

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

117La

Maseni broj117
neutron number60
Relativna atomska masa
116,950326 ± 0,000215 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
21,7 ± 1,8 ms
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma2001
Parnost+

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

118La

Maseni broj118
neutron number61
Relativna atomska masa
117,946731 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1
nuclear quadrupole moment
vrijeme otkrića ili izuma
Parnost-

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

119La

Maseni broj119
neutron number62
Relativna atomska masa
118,940934 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin11/2
nuclear quadrupole moment
vrijeme otkrića ili izuma
Parnost-

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

120La

Maseni broj120
neutron number63
Relativna atomska masa
119,938196 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,8 ± 0,2 s
spin1
nuclear quadrupole moment
vrijeme otkrića ili izuma1984
Parnost-

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

121La

Maseni broj121
neutron number64
Relativna atomska masa
120,933236 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,3 ± 0,2 s
spin11/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1988
Parnost-

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

122La

Maseni broj122
neutron number65
Relativna atomska masa
121,93071 ± 0,00032 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8,6 ± 0,5 s
spin1
nuclear quadrupole moment
vrijeme otkrića ili izuma1984
Parnost-

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

123La

Maseni broj123
neutron number66
Relativna atomska masa
122,9263 ± 0,00021 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
17 ± 3 s
spin11/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1978
Parnost-

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

124La

Maseni broj124
neutron number67
Relativna atomska masa
123,924574275 ± 0,000060836 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
29,21 ± 0,17 s
spin7
nuclear quadrupole moment
vrijeme otkrića ili izuma1978
Parnost

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

125La

Maseni broj125
neutron number68
Relativna atomska masa
124,920815931 ± 0,000027909 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
64,8 ± 1,2 s
spin11/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1973
Parnost-

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

126La

Maseni broj126
neutron number69
Relativna atomska masa
125,919512667 ± 0,000097163 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
54 ± 2 s
spin5
nuclear quadrupole moment
vrijeme otkrića ili izuma1961
Parnost-

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

127La

Maseni broj127
neutron number70
Relativna atomska masa
126,916375083 ± 0,000027912 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,1 ± 0,1 m
spin11/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1963
Parnost-

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

128La

Maseni broj128
neutron number71
Relativna atomska masa
127,915592123 ± 0,000058452 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,18 ± 0,14 m
spin5
nuclear quadrupole moment
vrijeme otkrića ili izuma1961
Parnost+

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

129La

Maseni broj129
neutron number72
Relativna atomska masa
128,912695592 ± 0,000022913 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
11,6 ± 0,2 m
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1963
Parnost+

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

130La

Maseni broj130
neutron number73
Relativna atomska masa
129,912369413 ± 0,000027854 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8,7 ± 0,1 m
spin3
nuclear quadrupole moment
vrijeme otkrića ili izuma1961
Parnost

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

131La

Maseni broj131
neutron number74
Relativna atomska masa
130,91007 ± 0,00003 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
59 ± 2 m
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1951
Parnost+

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

132La

Maseni broj132
neutron number75
Relativna atomska masa
131,910119047 ± 0,000039032 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,59 ± 0,04 h
spin2
nuclear quadrupole moment
vrijeme otkrića ili izuma1951
Parnost-

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

133La

Maseni broj133
neutron number76
Relativna atomska masa
132,908218 ± 0,00003 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,912 ± 0,008 h
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1950
Parnost+

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

134La

Maseni broj134
neutron number77
Relativna atomska masa
133,908514011 ± 0,000021395 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,45 ± 0,16 m
spin1
nuclear quadrupole moment
vrijeme otkrića ili izuma1951
Parnost+

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

135La

Maseni broj135
neutron number78
Relativna atomska masa
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
vrijeme otkrića ili izuma1948
Parnost+

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

136La

Maseni broj136
neutron number79
Relativna atomska masa
135,907634962 ± 0,000057081 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
9,87 ± 0,03 m
spin1
nuclear quadrupole moment
vrijeme otkrića ili izuma1950
Parnost+

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

137La

Maseni broj137
neutron number80
Relativna atomska masa
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
vrijeme otkrića ili izuma1948
Parnost+

decay modeintensity
ϵ (electron capture)100%

138La

Maseni broj138
neutron number81
Relativna atomska masa
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
vrijeme otkrića ili izuma1947
Parnost+

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

139La

Maseni broj139
neutron number82
Relativna atomska masa
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
vrijeme otkrića ili izuma1924
Parnost+

140La

Maseni broj140
neutron number83
Relativna atomska masa
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
vrijeme otkrića ili izuma1935
Parnost-

decay modeintensity
β (β decay)100%

141La

Maseni broj141
neutron number84
Relativna atomska masa
140,910971155 ± 0,00000443 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,92 ± 0,03 h
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1951
Parnost+

decay modeintensity
β (β decay)100%

142La

Maseni broj142
neutron number85
Relativna atomska masa
141,91409076 ± 0,000006748 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
91,1 ± 0,5 m
spin2
nuclear quadrupole moment
vrijeme otkrića ili izuma1953
Parnost-

decay modeintensity
β (β decay)100%

143La

Maseni broj143
neutron number86
Relativna atomska masa
142,916079482 ± 0,000007868 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
14,2 ± 0,1 m
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1951
Parnost

decay modeintensity
β (β decay)100%

144La

Maseni broj144
neutron number87
Relativna atomska masa
143,919645589 ± 0,000013888 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
44 ± 0,7 s
spin3
nuclear quadrupole moment
vrijeme otkrića ili izuma1967
Parnost-

decay modeintensity
β (β decay)100%

145La

Maseni broj145
neutron number88
Relativna atomska masa
144,921808065 ± 0,00001317 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
24,8 ± 2 s
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1974
Parnost+

decay modeintensity
β (β decay)100%

146La

Maseni broj146
neutron number89
Relativna atomska masa
145,925688017 ± 0,000001797 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
9,9 ± 0,1 s
spin5
nuclear quadrupole moment
vrijeme otkrića ili izuma1970
Parnost-

decay modeintensity
β (β decay)100%

147La

Maseni broj147
neutron number90
Relativna atomska masa
146,9284178 ± 0,0000115 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,026 ± 0,02 s
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1979
Parnost+

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

148La

Maseni broj148
neutron number91
Relativna atomska masa
147,9326794 ± 0,0000209 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,414 ± 0,025 s
spin2
nuclear quadrupole moment
vrijeme otkrića ili izuma1969
Parnost-

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

149La

Maseni broj149
neutron number92
Relativna atomska masa
148,935351259 ± 0,00021499 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,071 ± 0,022 s
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1979
Parnost-

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

150La

Maseni broj150
neutron number93
Relativna atomska masa
149,9395475 ± 0,0000027 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
504 ± 15 ms
spin3
nuclear quadrupole moment
vrijeme otkrića ili izuma1993
Parnost+

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

151La

Maseni broj151
neutron number94
Relativna atomska masa
150,942769 ± 0,0004675 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
465 ± 24 ms
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1994
Parnost+

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

152La

Maseni broj152
neutron number95
Relativna atomska masa
151,947085 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
287 ± 16 ms
spin2
nuclear quadrupole moment
vrijeme otkrića ili izuma1994
Parnost-

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

153La

Maseni broj153
neutron number96
Relativna atomska masa
152,950553 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
245 ± 18 ms
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1994
Parnost+

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

154La

Maseni broj154
neutron number97
Relativna atomska masa
153,955416 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
161 ± 15 ms
spin2
nuclear quadrupole moment
vrijeme otkrića ili izuma2017
Parnost-

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

155La

Maseni broj155
neutron number98
Relativna atomska masa
154,95928 ± 0,000429 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
101 ± 28 ms
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2016
Parnost+

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

156La

Maseni broj156
neutron number99
Relativna atomska masa
155,964519 ± 0,000429 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
84 ± 78 ms
spin4
nuclear quadrupole moment
vrijeme otkrića ili izuma2017
Parnost+

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

157La

Maseni broj157
neutron number100
Relativna atomska masa
156,968792 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2018
Parnost+

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

povijest

otkrio/izumioCarl Mosander
location of discoverySweden
vrijeme otkrića ili izuma1839
EtimologijaGreek: lanthanein (to be hidden).
pronunciationLAN-the-nem (engleski)

source

Obilnost
Zastupljenost u Zemljinoj kori
natural abundance (ocean)
0,0000034 mg/L
natural abundance (tijelo)
natural abundance (meteoroid)
0,000028 %
natural abundance (Sunce)
0,0000002 %
Zastupljenost u svemiru
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