Samarium

Samarium (Sm)

chemical element with atomic number of 62
Atomic Number62
Atomic Weight150.36
Numri i masës152
Group
Period6
Blockf
protoni62 p+
neutroni90 n0
elektroni62 e-
Animated Bohr model of Sm (Samarium)

Tipar Fizik

Atomic Radius
185 pm
molar volume
covalent radius
172 pm
Metallic Radius
ionic radius
122 pm
Crystal Radius
136 pm
Van der Waals radius
236 pm
density
7,52 g/cm³
Atomic Radii Of The Elements: Samarium0153045607590105120135150165180195210225240pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

energjia
proton affinity
electron affinity
ionization energy
5,64371 eV/particle
ionization energy of Sm (Samarium)
enthalpy of vaporization
165 kJ/mol
enthalpy of fusion
8,9 kJ/mol
standard enthalpy of formation
206,7 kJ/mol
elektroni
electron shell2, 8, 18, 24, 8, 2
Bohr model: Sm (Samarium)
valence electron2
Lewis structure: Sm (Samarium)
konfigurimi i elektronit[Xe] 4f6 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f6 6s2
Enhanced Bohr model of Sm (Samarium)
Orbital Diagram of Sm (Samarium)
oxidation number0, 1, 2, 3
Elektronegativiteti
1.17
Electrophilicity Index
fundamental state of matter
gjendja agregate e materiesSolid
gaseous state of matter
Boiling Point
2 067,15 K
Melting Point
1 345,15 K
critical pressure
critical temperature
triple point
appearance
Ngjyra
Silver
appearancesilvery white
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
0,0000127 1/K
molar heat capacity
29,54 J/(mol K)
Specific Heat Capacity
0,197 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
1,1 MS/m
electrical resistivity
0,00000094 m Ω
Superpërcjellshmëria
Magnetizimi
typeparamagnetic
magnetic susceptibility (Mass)
0,000000111 m³/Kg
magnetic susceptibility (Molar)
0,00000001669 m³/mol
magnetic susceptibility (Volume)
0,00081618
magnetic ordering
Curie temperature
Néel temperature
106 K
strukturë
Crystal StructureSimple Trigonal (RHL)
lattice constant
9 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
bulk modulus
38 GPa
shear modulus
20 GPa
Young's modulus
50 GPa
Poisson's ratio
0,27
Shpejtësia e zërit
2 130 m/s
klasifikim
CategoryLanthanides, Lanthanides
CAS Group
IUPAC Group
Glawe Number27
Mendeleev Number23
Pettifor Number28
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
192 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
5 900
Neutron Mass Absorption
4,7
numër kuantik7F0
space group166 (R_3m)

Isotopes of Samarium

Stable Isotopes2
Unstable Isotopes39
Natural Isotopes7
Isotopic Composition15226.74%15226.74%15422.74%15422.74%14715.00%14715.00%14913.82%14913.82%14811.25%14811.25%1507.37%1507.37%1443.08%1443.08%

128Sm

Numri i masës128
numri i neutroneve66
relative atomic mass
127,957971 ± 0,000537 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes
parity+

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

129Sm

Numri i masës129
numri i neutroneve67
relative atomic mass
128,954557 ± 0,000537 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
550 ± 100 ms
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1999
parity+

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

130Sm

Numri i masës130
numri i neutroneve68
relative atomic mass
129,948792 ± 0,000429 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1999
parity+

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

131Sm

Numri i masës131
numri i neutroneve69
relative atomic mass
130,946022 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,2 ± 0,2 s
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1986
parity+

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

132Sm

Numri i masës132
numri i neutroneve70
relative atomic mass
131,940805 ± 0,000322 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
4 ± 0,3 s
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1989
parity+

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

133Sm

Numri i masës133
numri i neutroneve71
relative atomic mass
132,93856 ± 0,00032 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,89 ± 0,16 s
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1977
parity+

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

134Sm

Numri i masës134
numri i neutroneve72
relative atomic mass
133,93411 ± 0,00021 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
9,5 ± 0,8 s
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1977
parity+

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

135Sm

Numri i masës135
numri i neutroneve73
relative atomic mass
134,93252 ± 0,000166 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
10,3 ± 0,5 s
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1977
parity+

decay modeintensitet
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.02%

136Sm

Numri i masës136
numri i neutroneve74
relative atomic mass
135,928275553 ± 0,000013416 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
47 ± 2 s
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1982
parity+

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

137Sm

Numri i masës137
numri i neutroneve75
relative atomic mass
136,927007959 ± 0,000030718 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
45 ± 1 s
Spini9/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1986
parity-

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

138Sm

Numri i masës138
numri i neutroneve76
relative atomic mass
137,923243988 ± 0,000012686 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,1 ± 0,2 m
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1982
parity+

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

139Sm

Numri i masës139
numri i neutroneve77
relative atomic mass
138,922296631 ± 0,000011684 Da
g-factor
-1,06 ± 0,04
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,57 ± 0,1 m
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1971
parity+

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

140Sm

Numri i masës140
numri i neutroneve78
relative atomic mass
139,918994714 ± 0,000013416 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
14,82 ± 0,12 m
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1967
parity+

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

141Sm

Numri i masës141
numri i neutroneve79
relative atomic mass
140,918481545 ± 0,000009162 Da
g-factor
-1,48 ± 0,04
natural abundance
Radioaktivitet☢️ radioactive element
half-life
10,2 ± 0,2 m
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1967
parity+

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

142Sm

Numri i masës142
numri i neutroneve80
relative atomic mass
141,915209415 ± 0,000002002 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
72,49 ± 0,05 m
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1959
parity+

decay modeintensitet
β+ (β+ decay; β+ = ϵ + e+)100%
e+ (positron emission)5%

143Sm

Numri i masës143
numri i neutroneve81
relative atomic mass
142,914634848 ± 0,000002951 Da
g-factor
0,67333333333333 ± 0,013333333333333
natural abundance
Radioaktivitet☢️ radioactive element
half-life
8,75 ± 0,06 m
Spini3/2
nuclear quadrupole moment
0,4 ± 0,2
koha e zbulimit apo shpikjes1956
parity+

decay modeintensitet
β+ (β+ decay; β+ = ϵ + e+)100%
e+ (positron emission)40%
ϵ (electron capture)60%

144Sm

Numri i masës144
numri i neutroneve82
relative atomic mass
143,912006285 ± 0,000001566 Da
g-factor
0
natural abundance
3,08 ± 0,04
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1933
parity+

decay modeintensitet
+ (double β+ decay)

145Sm

Numri i masës145
numri i neutroneve83
relative atomic mass
144,913417157 ± 0,000001594 Da
g-factor
-0,32 ± 0,0031428571428571
natural abundance
Radioaktivitet☢️ radioactive element
half-life
340 ± 3 d
Spini7/2
nuclear quadrupole moment
-0,6 ± 0,07
koha e zbulimit apo shpikjes1947
parity-

decay modeintensitet
ϵ (electron capture)100%

146Sm

Numri i masës146
numri i neutroneve84
relative atomic mass
145,913046835 ± 0,000003269 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
68 ± 7 My
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1953
parity+

decay modeintensitet
α (α emission)100%

147Sm

Numri i masës147
numri i neutroneve85
relative atomic mass
146,914904401 ± 0,000001354 Da
g-factor
-0,23114285714286 ± 0,0004
natural abundance
15 ± 0,14
Radioaktivitet☢️ radioactive element
half-life
106,6 ± 0,5 Gy
Spini7/2
nuclear quadrupole moment
-0,26 ± 0,03
koha e zbulimit apo shpikjes1933
parity-

decay modeintensitet
α (α emission)100%

148Sm

Numri i masës148
numri i neutroneve86
relative atomic mass
147,914829233 ± 0,000001337 Da
g-factor
0
natural abundance
11,25 ± 0,09
Radioaktivitet☢️ radioactive element
half-life
6,3 ± 1,3 Py
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1933
parity+

decay modeintensitet
α (α emission)100%

149Sm

Numri i masës149
numri i neutroneve87
relative atomic mass
148,917191211 ± 0,000001241 Da
g-factor
-0,19077142857143 ± 0,00031428571428571
natural abundance
13,82 ± 0,1
Radioaktivitet☢️ radioactive element
half-life
Spini7/2
nuclear quadrupole moment
0,075 ± 0,008
koha e zbulimit apo shpikjes1933
parity-

decay modeintensitet
α (α emission)

150Sm

Numri i masës150
numri i neutroneve88
relative atomic mass
149,917281993 ± 0,000001193 Da
g-factor
0
natural abundance
7,37 ± 0,09
Radioaktivitetstable isotope
half-lifeNot Radioactive ☢️
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1934
parity+

151Sm

Numri i masës151
numri i neutroneve89
relative atomic mass
150,919938859 ± 0,000001191 Da
g-factor
-0,1442 ± 0,00024
natural abundance
Radioaktivitet☢️ radioactive element
half-life
94,6 ± 0,6 y
Spini5/2
nuclear quadrupole moment
0,71 ± 0,07
koha e zbulimit apo shpikjes1947
parity-

decay modeintensitet
β (β decay)100%

152Sm

Numri i masës152
numri i neutroneve90
relative atomic mass
151,919738646 ± 0,00000109 Da
g-factor
0
natural abundance
26,74 ± 0,09
Radioaktivitetstable isotope
half-lifeNot Radioactive ☢️
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1933
parity+

153Sm

Numri i masës153
numri i neutroneve91
relative atomic mass
152,922103576 ± 0,0000011 Da
g-factor
-0,014 ± 0,002
natural abundance
Radioaktivitet☢️ radioactive element
half-life
46,2846 ± 0,0023 h
Spini3/2
nuclear quadrupole moment
1,3 ± 0,12
koha e zbulimit apo shpikjes1938
parity+

decay modeintensitet
β (β decay)100%

154Sm

Numri i masës154
numri i neutroneve92
relative atomic mass
153,922215756 ± 0,0000014 Da
g-factor
0
natural abundance
22,74 ± 0,14
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1933
parity+

decay modeintensitet
(double β decay)

155Sm

Numri i masës155
numri i neutroneve93
relative atomic mass
154,924646645 ± 0,000001429 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
22,18 ± 0,06 m
Spini3/2
nuclear quadrupole moment
1,13 ± 0,13
koha e zbulimit apo shpikjes1951
parity-

decay modeintensitet
β (β decay)100%

156Sm

Numri i masës156
numri i neutroneve94
relative atomic mass
155,925538191 ± 0,000009148 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
9,4 ± 0,2 h
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1951
parity+

decay modeintensitet
β (β decay)100%

157Sm

Numri i masës157
numri i neutroneve95
relative atomic mass
156,928418598 ± 0,000004759 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
8,03 ± 0,07 m
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1973
parity-

decay modeintensitet
β (β decay)100%

158Sm

Numri i masës158
numri i neutroneve96
relative atomic mass
157,929949262 ± 0,000005133 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
5,3 ± 0,03 m
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1970
parity+

decay modeintensitet
β (β decay)100%

159Sm

Numri i masës159
numri i neutroneve97
relative atomic mass
158,93321713 ± 0,00000637 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
11,37 ± 0,15 s
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1986
parity-

decay modeintensitet
β (β decay)100%

160Sm

Numri i masës160
numri i neutroneve98
relative atomic mass
159,935337032 ± 0,0000021 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
9,6 ± 0,3 s
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1986
parity+

decay modeintensitet
β (β decay)100%

161Sm

Numri i masës161
numri i neutroneve99
relative atomic mass
160,939160062 ± 0,000007318 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
4,8 ± 0,4 s
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1998
parity+

decay modeintensitet
β (β decay)100%

162Sm

Numri i masës162
numri i neutroneve100
relative atomic mass
161,941621687 ± 0,000003782 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,7 ± 0,3 s
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2005
parity+

decay modeintensitet
β (β decay)100%

163Sm

Numri i masës163
numri i neutroneve101
relative atomic mass
162,945679085 ± 0,0000079 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,3 ± 0,5 s
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2012
parity-

decay modeintensitet
β (β decay)100%

164Sm

Numri i masës164
numri i neutroneve102
relative atomic mass
163,948550061 ± 0,0000044 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,43 ± 0,24 s
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2012
parity+

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

165Sm

Numri i masës165
numri i neutroneve103
relative atomic mass
164,95329 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
980 ± 210 ms
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2012
parity-

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

166Sm

Numri i masës166
numri i neutroneve104
relative atomic mass
165,956575 ± 0,000429 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
800 ± 630 ms
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2017
parity+

decay modeintensitet
β (β decay)100%

167Sm

Numri i masës167
numri i neutroneve105
relative atomic mass
166,962072 ± 0,000537 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2018
parity-

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

168Sm

Numri i masës168
numri i neutroneve106
relative atomic mass
167,966033 ± 0,000322 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2018
parity+

decay modeintensitet
β (β decay)
β n (β-delayed neutron emission)
Samarium 1

historia

zbuluesPaul Émile Lecoq de Boisbaudran
vendndodhja e zbulimitFrance
koha e zbulimit apo shpikjes1879
EtimologjiaNamed after the mineral samarskite.
pronunciationseh-MER-i-em (anglisht)

burim

Abundance
Abundance in Earth's crust
7,05 mg/kg
natural abundance (Oqeani)
0,00000045 mg/L
natural abundance (Trupi i njeriut)
natural abundance (meteoroid)
0,000017 %
natural abundance (Diell)
0,0000001 %
Abundance in Universe
0,0000005 %

Nuclear Screening Constants

1s1.2217
2p4.269
2s16.2652
3d13.7711
3p19.5815
3s19.9736
4d33.7604
4f38.4684
4p30.912
4s29.7076
5p45.719
5s43.751
6s53.9882