Samaryûm

Samaryûm (Sm)

chemical element with atomic number of 62
Atomic Number62
Atomic Weight150.36
Hejmara baristeyî152
Group
Period6
Blockf
Proton62 p+
Notron90 n0
Kareva62 e-
Animated Bohr model of Sm (Samaryûm)

Physical Property

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: Samaryûm0102030405060708090100110120130140150160170180190200210220230240pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

wize
proton affinity
electron affinity
ionization energy
5,64371 eV/particle
ionization energy of Sm (Samaryûm)
enthalpy of vaporization
165 kJ/mol
enthalpy of fusion
8,9 kJ/mol
standard enthalpy of formation
206,7 kJ/mol
Kareva
electron shell2, 8, 18, 24, 8, 2
Bohr model: Sm (Samaryûm)
valence electron2
Lewis structure: Sm (Samaryûm)
electron configuration[Xe] 4f6 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f6 6s2
Enhanced Bohr model of Sm (Samaryûm)
Orbital Diagram of Sm (Samaryûm)
oxidation number0, 1, 2, 3
electronegativity
1.17
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
2.067,15 K
Melting Point
1.345,15 K
critical pressure
critical temperature
triple point
appearance
color
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
superconductivity
magnetism
typeparamagnetic
magnetic susceptibility (Mass)
0,000000111 m³/Kg
magnetic susceptibility (Molar)
0,00000001669 m³/mol
magnetic susceptibility (Volume)
0,00081618
magnetic ordering
Germahiya Curie
Néel temperature
106 K
pêkhate
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
Leza dengê
2.130 m/s
classification
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
quantum number7F0
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

Hejmara baristeyî128
neutron number66
Giraniya atomê
127,957971 ± 0,000537 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê
parity+

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

129Sm

Hejmara baristeyî129
neutron number67
Giraniya atomê
128,954557 ± 0,000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
550 ± 100 ms
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1999
parity+

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

130Sm

Hejmara baristeyî130
neutron number68
Giraniya atomê
129,948792 ± 0,000429 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1999
parity+

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

131Sm

Hejmara baristeyî131
neutron number69
Giraniya atomê
130,946022 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,2 ± 0,2 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1986
parity+

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

132Sm

Hejmara baristeyî132
neutron number70
Giraniya atomê
131,940805 ± 0,000322 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
4 ± 0,3 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1989
parity+

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

133Sm

Hejmara baristeyî133
neutron number71
Giraniya atomê
132,93856 ± 0,00032 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,89 ± 0,16 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1977
parity+

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

134Sm

Hejmara baristeyî134
neutron number72
Giraniya atomê
133,93411 ± 0,00021 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
9,5 ± 0,8 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1977
parity+

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

135Sm

Hejmara baristeyî135
neutron number73
Giraniya atomê
134,93252 ± 0,000166 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
10,3 ± 0,5 s
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1977
parity+

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

136Sm

Hejmara baristeyî136
neutron number74
Giraniya atomê
135,928275553 ± 0,000013416 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
47 ± 2 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1982
parity+

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

137Sm

Hejmara baristeyî137
neutron number75
Giraniya atomê
136,927007959 ± 0,000030718 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
45 ± 1 s
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1986
parity-

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

138Sm

Hejmara baristeyî138
neutron number76
Giraniya atomê
137,923243988 ± 0,000012686 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
3,1 ± 0,2 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1982
parity+

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

139Sm

Hejmara baristeyî139
neutron number77
Giraniya atomê
138,922296631 ± 0,000011684 Da
g-factor
-1,06 ± 0,04
natural abundance
radioactivity☢️ radioactive element
half-life
2,57 ± 0,1 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1971
parity+

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

140Sm

Hejmara baristeyî140
neutron number78
Giraniya atomê
139,918994714 ± 0,000013416 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
14,82 ± 0,12 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

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

141Sm

Hejmara baristeyî141
neutron number79
Giraniya atomê
140,918481545 ± 0,000009162 Da
g-factor
-1,48 ± 0,04
natural abundance
radioactivity☢️ radioactive element
half-life
10,2 ± 0,2 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

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

142Sm

Hejmara baristeyî142
neutron number80
Giraniya atomê
141,915209415 ± 0,000002002 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
72,49 ± 0,05 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1959
parity+

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

143Sm

Hejmara baristeyî143
neutron number81
Giraniya atomê
142,914634848 ± 0,000002951 Da
g-factor
0,67333333333333 ± 0,013333333333333
natural abundance
radioactivity☢️ radioactive element
half-life
8,75 ± 0,06 m
spin3/2
nuclear quadrupole moment
0,4 ± 0,2
dema îcadkirinê yan keşfê1956
parity+

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

144Sm

Hejmara baristeyî144
neutron number82
Giraniya atomê
143,912006285 ± 0,000001566 Da
g-factor
0
natural abundance
3,08 ± 0,04
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1933
parity+

decay modeintensity
+ (double β+ decay)

145Sm

Hejmara baristeyî145
neutron number83
Giraniya atomê
144,913417157 ± 0,000001594 Da
g-factor
-0,32 ± 0,0031428571428571
natural abundance
radioactivity☢️ radioactive element
half-life
340 ± 3 d
spin7/2
nuclear quadrupole moment
-0,6 ± 0,07
dema îcadkirinê yan keşfê1947
parity-

decay modeintensity
ϵ (electron capture)100%

146Sm

Hejmara baristeyî146
neutron number84
Giraniya atomê
145,913046835 ± 0,000003269 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
68 ± 7 My
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1953
parity+

decay modeintensity
α (α emission)100%

147Sm

Hejmara baristeyî147
neutron number85
Giraniya atomê
146,914904401 ± 0,000001354 Da
g-factor
-0,23114285714286 ± 0,0004
natural abundance
15 ± 0,14
radioactivity☢️ radioactive element
half-life
106,6 ± 0,5 Gy
spin7/2
nuclear quadrupole moment
-0,26 ± 0,03
dema îcadkirinê yan keşfê1933
parity-

decay modeintensity
α (α emission)100%

148Sm

Hejmara baristeyî148
neutron number86
Giraniya atomê
147,914829233 ± 0,000001337 Da
g-factor
0
natural abundance
11,25 ± 0,09
radioactivity☢️ radioactive element
half-life
6,3 ± 1,3 Py
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1933
parity+

decay modeintensity
α (α emission)100%

149Sm

Hejmara baristeyî149
neutron number87
Giraniya atomê
148,917191211 ± 0,000001241 Da
g-factor
-0,19077142857143 ± 0,00031428571428571
natural abundance
13,82 ± 0,1
radioactivity☢️ radioactive element
half-life
spin7/2
nuclear quadrupole moment
0,075 ± 0,008
dema îcadkirinê yan keşfê1933
parity-

decay modeintensity
α (α emission)

150Sm

Hejmara baristeyî150
neutron number88
Giraniya atomê
149,917281993 ± 0,000001193 Da
g-factor
0
natural abundance
7,37 ± 0,09
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1934
parity+

151Sm

Hejmara baristeyî151
neutron number89
Giraniya atomê
150,919938859 ± 0,000001191 Da
g-factor
-0,1442 ± 0,00024
natural abundance
radioactivity☢️ radioactive element
half-life
94,6 ± 0,6 y
spin5/2
nuclear quadrupole moment
0,71 ± 0,07
dema îcadkirinê yan keşfê1947
parity-

decay modeintensity
β (β decay)100%

152Sm

Hejmara baristeyî152
neutron number90
Giraniya atomê
151,919738646 ± 0,00000109 Da
g-factor
0
natural abundance
26,74 ± 0,09
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1933
parity+

153Sm

Hejmara baristeyî153
neutron number91
Giraniya atomê
152,922103576 ± 0,0000011 Da
g-factor
-0,014 ± 0,002
natural abundance
radioactivity☢️ radioactive element
half-life
46,2846 ± 0,0023 h
spin3/2
nuclear quadrupole moment
1,3 ± 0,12
dema îcadkirinê yan keşfê1938
parity+

decay modeintensity
β (β decay)100%

154Sm

Hejmara baristeyî154
neutron number92
Giraniya atomê
153,922215756 ± 0,0000014 Da
g-factor
0
natural abundance
22,74 ± 0,14
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1933
parity+

decay modeintensity
(double β decay)

155Sm

Hejmara baristeyî155
neutron number93
Giraniya atomê
154,924646645 ± 0,000001429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
22,18 ± 0,06 m
spin3/2
nuclear quadrupole moment
1,13 ± 0,13
dema îcadkirinê yan keşfê1951
parity-

decay modeintensity
β (β decay)100%

156Sm

Hejmara baristeyî156
neutron number94
Giraniya atomê
155,925538191 ± 0,000009148 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
9,4 ± 0,2 h
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1951
parity+

decay modeintensity
β (β decay)100%

157Sm

Hejmara baristeyî157
neutron number95
Giraniya atomê
156,928418598 ± 0,000004759 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
8,03 ± 0,07 m
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1973
parity-

decay modeintensity
β (β decay)100%

158Sm

Hejmara baristeyî158
neutron number96
Giraniya atomê
157,929949262 ± 0,000005133 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
5,3 ± 0,03 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1970
parity+

decay modeintensity
β (β decay)100%

159Sm

Hejmara baristeyî159
neutron number97
Giraniya atomê
158,93321713 ± 0,00000637 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
11,37 ± 0,15 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1986
parity-

decay modeintensity
β (β decay)100%

160Sm

Hejmara baristeyî160
neutron number98
Giraniya atomê
159,935337032 ± 0,0000021 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
9,6 ± 0,3 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1986
parity+

decay modeintensity
β (β decay)100%

161Sm

Hejmara baristeyî161
neutron number99
Giraniya atomê
160,939160062 ± 0,000007318 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
4,8 ± 0,4 s
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1998
parity+

decay modeintensity
β (β decay)100%

162Sm

Hejmara baristeyî162
neutron number100
Giraniya atomê
161,941621687 ± 0,000003782 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2,7 ± 0,3 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2005
parity+

decay modeintensity
β (β decay)100%

163Sm

Hejmara baristeyî163
neutron number101
Giraniya atomê
162,945679085 ± 0,0000079 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,3 ± 0,5 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2012
parity-

decay modeintensity
β (β decay)100%

164Sm

Hejmara baristeyî164
neutron number102
Giraniya atomê
163,948550061 ± 0,0000044 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
1,43 ± 0,24 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2012
parity+

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

165Sm

Hejmara baristeyî165
neutron number103
Giraniya atomê
164,95329 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
980 ± 210 ms
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2012
parity-

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

166Sm

Hejmara baristeyî166
neutron number104
Giraniya atomê
165,956575 ± 0,000429 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
800 ± 630 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2017
parity+

decay modeintensity
β (β decay)100%

167Sm

Hejmara baristeyî167
neutron number105
Giraniya atomê
166,962072 ± 0,000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2018
parity-

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

168Sm

Hejmara baristeyî168
neutron number106
Giraniya atomê
167,966033 ± 0,000322 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2018
parity+

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

dîrok

kaşîf an îcadkerPaul Émile Lecoq de Boisbaudran
location of discoveryFrance
dema îcadkirinê yan keşfê1879
BêjenasîNamed after the mineral samarskite.
pronunciationseh-MER-i-em (îngilîzî)

source

Abundance
Abundance in Earth's crust
7,05 mg/kg
natural abundance (Okyanûs)
0,00000045 mg/L
natural abundance (human body)
natural abundance (meteoroid)
0,000017 %
natural abundance (Roj)
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