Самарий

Самарий (Sm)

chemical element with atomic number of 62
Atomic Number62
Atomic Weight150.36
Адади массавӣ152
Group
Period6
Blockf
proton62 p+
neutron90 n0
electron62 e-
Animated Bohr model of Sm (Самарий)

Хусусияти Физикӣ

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
зичӣ
7,52 g/cm³
Atomic Radii Of The Elements: Самарий0153045607590105120135150165180195210225240pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

энергия
proton affinity
electron affinity
ionization energy
5,64371 eV/particle
ionization energy of Sm (Самарий)
enthalpy of vaporization
165 kJ/mol
гармои гудозиш
8,9 kJ/mol
standard enthalpy of formation
206,7 kJ/mol
electron
Абри электронӣ2, 8, 18, 24, 8, 2
Bohr model: Sm (Самарий)
valence electron2
Lewis structure: Sm (Самарий)
electron configuration[Xe] 4f6 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f6 6s2
Enhanced Bohr model of Sm (Самарий)
Orbital Diagram of Sm (Самарий)
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
Ранг
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
heat capacity ratio
electrical properties
навъConductor
electrical conductivity
1,1 MS/m
electrical resistivity
0,00000094 m Ω
superconductivity
magnetism
навъparamagnetic
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
сохт
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
speed of sound
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
ададҳои квантӣ7F0
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

Адади массавӣ128
neutron number66
relative atomic mass
127,957971 ± 0,000537 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
таърихи кашф
parity+

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

129Sm

Адади массавӣ129
neutron number67
relative atomic mass
128,954557 ± 0,000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
550 ± 100 ms
spin1/2
nuclear quadrupole moment
0
таърихи кашф1999
parity+

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

130Sm

Адади массавӣ130
neutron number68
relative atomic mass
129,948792 ± 0,000429 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
таърихи кашф1999
parity+

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

131Sm

Адади массавӣ131
neutron number69
relative atomic mass
130,946022 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,2 ± 0,2 s
spin5/2
nuclear quadrupole moment
таърихи кашф1986
parity+

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

132Sm

Адади массавӣ132
neutron number70
relative atomic mass
131,940805 ± 0,000322 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
4 ± 0,3 s
spin0
nuclear quadrupole moment
0
таърихи кашф1989
parity+

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

133Sm

Адади массавӣ133
neutron number71
relative atomic mass
132,93856 ± 0,00032 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,89 ± 0,16 s
spin5/2
nuclear quadrupole moment
таърихи кашф1977
parity+

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

134Sm

Адади массавӣ134
neutron number72
relative atomic mass
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
таърихи кашф1977
parity+

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

135Sm

Адади массавӣ135
neutron number73
relative atomic mass
134,93252 ± 0,000166 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
10,3 ± 0,5 s
spin7/2
nuclear quadrupole moment
таърихи кашф1977
parity+

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

136Sm

Адади массавӣ136
neutron number74
relative atomic mass
135,928275553 ± 0,000013416 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
47 ± 2 s
spin0
nuclear quadrupole moment
0
таърихи кашф1982
parity+

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

137Sm

Адади массавӣ137
neutron number75
relative atomic mass
136,927007959 ± 0,000030718 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
45 ± 1 s
spin9/2
nuclear quadrupole moment
таърихи кашф1986
parity-

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

138Sm

Адади массавӣ138
neutron number76
relative atomic mass
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
таърихи кашф1982
parity+

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

139Sm

Адади массавӣ139
neutron number77
relative atomic mass
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
таърихи кашф1971
parity+

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

140Sm

Адади массавӣ140
neutron number78
relative atomic mass
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
таърихи кашф1967
parity+

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

141Sm

Адади массавӣ141
neutron number79
relative atomic mass
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
таърихи кашф1967
parity+

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

142Sm

Адади массавӣ142
neutron number80
relative atomic mass
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
таърихи кашф1959
parity+

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

143Sm

Адади массавӣ143
neutron number81
relative atomic mass
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
таърихи кашф1956
parity+

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

144Sm

Адади массавӣ144
neutron number82
relative atomic mass
143,912006285 ± 0,000001566 Da
g-factor
0
natural abundance
3,08 ± 0,04
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
таърихи кашф1933
parity+

decay modeintensity
+ (double β+ decay)

145Sm

Адади массавӣ145
neutron number83
relative atomic mass
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
таърихи кашф1947
parity-

decay modeintensity
ϵ (electron capture)100%

146Sm

Адади массавӣ146
neutron number84
relative atomic mass
145,913046835 ± 0,000003269 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
68 ± 7 My
spin0
nuclear quadrupole moment
0
таърихи кашф1953
parity+

decay modeintensity
α (α emission)100%

147Sm

Адади массавӣ147
neutron number85
relative atomic mass
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
таърихи кашф1933
parity-

decay modeintensity
α (α emission)100%

148Sm

Адади массавӣ148
neutron number86
relative atomic mass
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
таърихи кашф1933
parity+

decay modeintensity
α (α emission)100%

149Sm

Адади массавӣ149
neutron number87
relative atomic mass
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
таърихи кашф1933
parity-

decay modeintensity
α (α emission)

150Sm

Адади массавӣ150
neutron number88
relative atomic mass
149,917281993 ± 0,000001193 Da
g-factor
0
natural abundance
7,37 ± 0,09
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
таърихи кашф1934
parity+

151Sm

Адади массавӣ151
neutron number89
relative atomic mass
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
таърихи кашф1947
parity-

decay modeintensity
β (β decay)100%

152Sm

Адади массавӣ152
neutron number90
relative atomic mass
151,919738646 ± 0,00000109 Da
g-factor
0
natural abundance
26,74 ± 0,09
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
таърихи кашф1933
parity+

153Sm

Адади массавӣ153
neutron number91
relative atomic mass
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
таърихи кашф1938
parity+

decay modeintensity
β (β decay)100%

154Sm

Адади массавӣ154
neutron number92
relative atomic mass
153,922215756 ± 0,0000014 Da
g-factor
0
natural abundance
22,74 ± 0,14
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
таърихи кашф1933
parity+

decay modeintensity
(double β decay)

155Sm

Адади массавӣ155
neutron number93
relative atomic mass
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
таърихи кашф1951
parity-

decay modeintensity
β (β decay)100%

156Sm

Адади массавӣ156
neutron number94
relative atomic mass
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
таърихи кашф1951
parity+

decay modeintensity
β (β decay)100%

157Sm

Адади массавӣ157
neutron number95
relative atomic mass
156,928418598 ± 0,000004759 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
8,03 ± 0,07 m
spin3/2
nuclear quadrupole moment
таърихи кашф1973
parity-

decay modeintensity
β (β decay)100%

158Sm

Адади массавӣ158
neutron number96
relative atomic mass
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
таърихи кашф1970
parity+

decay modeintensity
β (β decay)100%

159Sm

Адади массавӣ159
neutron number97
relative atomic mass
158,93321713 ± 0,00000637 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
11,37 ± 0,15 s
spin5/2
nuclear quadrupole moment
таърихи кашф1986
parity-

decay modeintensity
β (β decay)100%

160Sm

Адади массавӣ160
neutron number98
relative atomic mass
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
таърихи кашф1986
parity+

decay modeintensity
β (β decay)100%

161Sm

Адади массавӣ161
neutron number99
relative atomic mass
160,939160062 ± 0,000007318 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
4,8 ± 0,4 s
spin7/2
nuclear quadrupole moment
таърихи кашф1998
parity+

decay modeintensity
β (β decay)100%

162Sm

Адади массавӣ162
neutron number100
relative atomic mass
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
таърихи кашф2005
parity+

decay modeintensity
β (β decay)100%

163Sm

Адади массавӣ163
neutron number101
relative atomic mass
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
таърихи кашф2012
parity-

decay modeintensity
β (β decay)100%

164Sm

Адади массавӣ164
neutron number102
relative atomic mass
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
таърихи кашф2012
parity+

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

165Sm

Адади массавӣ165
neutron number103
relative atomic mass
164,95329 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
980 ± 210 ms
spin5/2
nuclear quadrupole moment
таърихи кашф2012
parity-

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

166Sm

Адади массавӣ166
neutron number104
relative atomic mass
165,956575 ± 0,000429 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
800 ± 630 ms
spin0
nuclear quadrupole moment
0
таърихи кашф2017
parity+

decay modeintensity
β (β decay)100%

167Sm

Адади массавӣ167
neutron number105
relative atomic mass
166,962072 ± 0,000537 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin7/2
nuclear quadrupole moment
таърихи кашф2018
parity-

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

168Sm

Адади массавӣ168
neutron number106
relative atomic mass
167,966033 ± 0,000322 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
таърихи кашф2018
parity+

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

таърих

кошифPaul Émile Lecoq de Boisbaudran
макони кашфFrance
таърихи кашф1879
РешашиносӣNamed after the mineral samarskite.
pronunciationseh-MER-i-em (Англисӣ)

source

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