Samarium (Sm)

grundstof med atomnummer 62

Atomnummer	62
Atommasse	150.36
mass number	152

Gruppe
Periode	6
Blok	f

proton	62 p⁺
neutron	90 n⁰
elektron	62 e^-

Animated Bohrs atommodel of Sm (Samarium)

Fysisk Egenskab

Atomradius	185 pm 280 pm
molar volume	19,9 cm³/mol
Kovalent Radius	172 pm 134 pm 198 pm
Metallic Radius
Ionisk radius	122 pm 127 pm 132 pm 95,8 pm 102 pm 107,9 pm 113,2 pm 124 pm
Crystal Radius	136 pm 141 pm 146 pm 109,8 pm 116 pm 121,9 pm 127,2 pm 138 pm
Van der Waals-radius	236 pm 271 pm 352 pm
massefylde	7,52 g/cm³ 7.160 kg/m³

Kemisk Egenskab

{ERROR}

energi

proton affinity
electron affinity
ioniseringsenergi	5,64371 eV/particle 11,07 eV/particle 23,4 eV/particle 41,4 eV/particle 62,66 eV/particle 90 eV/particle 103 eV/particle 118 eV/particle 141 eV/particle 158 eV/particle 179 eV/particle 208 eV/particle 237 eV/particle 257 eV/particle 276 eV/particle 306,5 eV/particle 474 eV/particle 506 eV/particle 543 eV/particle 581 eV/particle 617 eV/particle 658 eV/particle 702 eV/particle 742 eV/particle 782 eV/particle 822 eV/particle 976 eV/particle 1.016 eV/particle 1.060 eV/particle 1.103 eV/particle 1.180 eV/particle 1.226 eV/particle 1.332 eV/particle 1.381,6 eV/particle 2.371 eV/particle 2.466 eV/particle 2.569 eV/particle 2.676 eV/particle 2.782 eV/particle 2.887 eV/particle 3.028 eV/particle 3.137 eV/particle 3.253 eV/particle 3.363 eV/particle 3.669 eV/particle 3.766 eV/particle 3.873 eV/particle 3.971 eV/particle 4.227 eV/particle 4.337 eV/particle 4.548 eV/particle 4.655 eV/particle 10.494 eV/particle 10.762 eV/particle 11.060 eV/particle 11.337 eV/particle 12.264 eV/particle 12.588 eV/particle 12.992 eV/particle 13.262,85 eV/particle 53.986,11 eV/particle 55.214,23 eV/particle

Fordampningsvarme	165 kJ/mol
smeltevarme	8,9 kJ/mol
standard enthalpy of formation	206,7 kJ/mol
elektron

Elektronskal	2, 8, 18, 24, 8, 2

Valenselektron	2 ⓘ

electron configuration	[Xe] 4f⁶ 6s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 4f⁶ 6s²

Oxidationstrin	0, 1, 2, 3
Elektronegativitet	0.185468 1.17
Electrophilicity Index
fundamental state of matter

stoffase
gaseous state of matter
Kogepunkt	2.067,15 K
Smeltepunkt	1.345,15 K
critical pressure
critical temperature
trippelpunkt
appearance
farve	Sort #ff1493 #8fffc7 #8fffc7
appearance	silvery white
Brydningsindeks
materialeegenskab
Varmeledningsevne
Termisk ekspansion	0,0000127 1/K
molar heat capacity	29,54 J/(mol K)
Varmefylde	0,197 J/(g⋅K)
Adiabateksponenten
electrical properties
type	Conductor
specifik ledningsevne	1,1 MS/m
Elektrisk resistivitet	0,00000094 Ω*m
superledning
Magnetisme
type	paramagnetic
magnetic susceptibility (Mass)	0,000000111 m³/Kg
magnetic susceptibility (Molar)	0,00000001669 m³/mol
magnetic susceptibility (Volume)	0,00081618
magnetic ordering
Curietemperaturen
Néel temperature	106 K
struktur
Krystalstruktur	{ERROR}
lattice constant	9 Å
Lattice Angles	π/2, π/2, 2 π/3
mechanical property
hårdhed	441 MPa 412 MPa
Kompressibilitetsmodul	38 GPa
Forskydningsmodul	20 GPa
E-modul	50 GPa
Poissons forhold	0,27
speed of sound	2.130 m/s
klassificering
Kategori	Actinider, Lanthanides
CAS Group
IUPAC Group
Glawe Number	27
Mendeleev Number	23
Pettifor Number	28
Geochemical Class	rare earth & related
Goldschmidt classification	litophile

øvrige

Gas Basicity
polarizability	192 ± 20 a₀
C6 Dispersion Coefficient	3.130 a₀
allotrope
Neutron cross section	5.900
Neutron Mass Absorption	4,7
quantum number	7F0
rumgruppe	166 (R_3m)

Isotopes of Samarium

Stable Isotopes	2
Unstable Isotopes	39
Natural Isotopes	7

¹²⁸Sm

mass number	128
neutron number	66
Relative Atomic Mass	127,957971 ± 0,000537 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid
spin	0
nuclear quadrupole moment	0
opdagelsesdato
Paritet	+

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

¹²⁹Sm

mass number	129
neutron number	67
Relative Atomic Mass	128,954557 ± 0,000537 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	550 ± 100 ms
spin	1/2
nuclear quadrupole moment	0
opdagelsesdato	1999
Paritet	+

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

¹³⁰Sm

mass number	130
neutron number	68
Relative Atomic Mass	129,948792 ± 0,000429 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1999
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

¹³¹Sm

mass number	131
neutron number	69
Relative Atomic Mass	130,946022 ± 0,000429 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	1,2 ± 0,2 s
spin	5/2
nuclear quadrupole moment
opdagelsesdato	1986
Paritet	+

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

¹³²Sm

mass number	132
neutron number	70
Relative Atomic Mass	131,940805 ± 0,000322 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	4 ± 0,3 s
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1989
Paritet	+

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

¹³³Sm

mass number	133
neutron number	71
Relative Atomic Mass	132,93856 ± 0,00032 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	2,89 ± 0,16 s
spin	5/2
nuclear quadrupole moment
opdagelsesdato	1977
Paritet	+

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

¹³⁴Sm

mass number	134
neutron number	72
Relative Atomic Mass	133,93411 ± 0,00021 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	9,5 ± 0,8 s
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1977
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹³⁵Sm

mass number	135
neutron number	73
Relative Atomic Mass	134,93252 ± 0,000166 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	10,3 ± 0,5 s
spin	7/2
nuclear quadrupole moment
opdagelsesdato	1977
Paritet	+

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

¹³⁶Sm

mass number	136
neutron number	74
Relative Atomic Mass	135,928275553 ± 0,000013416 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	47 ± 2 s
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1982
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹³⁷Sm

mass number	137
neutron number	75
Relative Atomic Mass	136,927007959 ± 0,000030718 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	45 ± 1 s
spin	9/2
nuclear quadrupole moment
opdagelsesdato	1986
Paritet	-

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹³⁸Sm

mass number	138
neutron number	76
Relative Atomic Mass	137,923243988 ± 0,000012686 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	3,1 ± 0,2 m
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1982
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹³⁹Sm

mass number	139
neutron number	77
Relative Atomic Mass	138,922296631 ± 0,000011684 Da
g-factor	-1,06 ± 0,04
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	2,57 ± 0,1 m
spin	1/2
nuclear quadrupole moment	0
opdagelsesdato	1971
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁴⁰Sm

mass number	140
neutron number	78
Relative Atomic Mass	139,918994714 ± 0,000013416 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	14,82 ± 0,12 m
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1967
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁴¹Sm

mass number	141
neutron number	79
Relative Atomic Mass	140,918481545 ± 0,000009162 Da
g-factor	-1,48 ± 0,04
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	10,2 ± 0,2 m
spin	1/2
nuclear quadrupole moment	0
opdagelsesdato	1967
Paritet	+

decay mode	Intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁴²Sm

mass number	142
neutron number	80
Relative Atomic Mass	141,915209415 ± 0,000002002 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	72,49 ± 0,05 m
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1959
Paritet	+

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

¹⁴³Sm

mass number	143
neutron number	81
Relative Atomic Mass	142,914634848 ± 0,000002951 Da
g-factor	0,67333333333333 ± 0,013333333333333
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	8,75 ± 0,06 m
spin	3/2
nuclear quadrupole moment	0,4 ± 0,2
opdagelsesdato	1956
Paritet	+

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

¹⁴⁴Sm

mass number	144
neutron number	82
Relative Atomic Mass	143,912006285 ± 0,000001566 Da
g-factor	0
natural abundance	3,08 ± 0,04
radioaktivitet	☢️ radioactive element
halveringstid
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1933
Paritet	+

decay mode	Intensitet
2β⁺ (double β⁺ decay)

¹⁴⁵Sm

mass number	145
neutron number	83
Relative Atomic Mass	144,913417157 ± 0,000001594 Da
g-factor	-0,32 ± 0,0031428571428571
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	340 ± 3 d
spin	7/2
nuclear quadrupole moment	-0,6 ± 0,07
opdagelsesdato	1947
Paritet	-

decay mode	Intensitet
ϵ (electron capture)	100%

¹⁴⁶Sm

mass number	146
neutron number	84
Relative Atomic Mass	145,913046835 ± 0,000003269 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	68 ± 7 My
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1953
Paritet	+

decay mode	Intensitet
α (α emission)	100%

¹⁴⁷Sm

mass number	147
neutron number	85
Relative Atomic Mass	146,914904401 ± 0,000001354 Da
g-factor	-0,23114285714286 ± 0,0004
natural abundance	15 ± 0,14
radioaktivitet	☢️ radioactive element
halveringstid	106,6 ± 0,5 Gy
spin	7/2
nuclear quadrupole moment	-0,26 ± 0,03
opdagelsesdato	1933
Paritet	-

decay mode	Intensitet
α (α emission)	100%

¹⁴⁸Sm

mass number	148
neutron number	86
Relative Atomic Mass	147,914829233 ± 0,000001337 Da
g-factor	0
natural abundance	11,25 ± 0,09
radioaktivitet	☢️ radioactive element
halveringstid	6,3 ± 1,3 Py
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1933
Paritet	+

decay mode	Intensitet
α (α emission)	100%

¹⁴⁹Sm

mass number	149
neutron number	87
Relative Atomic Mass	148,917191211 ± 0,000001241 Da
g-factor	-0,19077142857143 ± 0,00031428571428571
natural abundance	13,82 ± 0,1
radioaktivitet	☢️ radioactive element
halveringstid
spin	7/2
nuclear quadrupole moment	0,075 ± 0,008
opdagelsesdato	1933
Paritet	-

decay mode	Intensitet
α (α emission)

¹⁵⁰Sm

mass number	150
neutron number	88
Relative Atomic Mass	149,917281993 ± 0,000001193 Da
g-factor	0
natural abundance	7,37 ± 0,09
radioaktivitet	stable isotope
halveringstid	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1934
Paritet	+

¹⁵¹Sm

mass number	151
neutron number	89
Relative Atomic Mass	150,919938859 ± 0,000001191 Da
g-factor	-0,1442 ± 0,00024
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	94,6 ± 0,6 y
spin	5/2
nuclear quadrupole moment	0,71 ± 0,07
opdagelsesdato	1947
Paritet	-

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁵²Sm

mass number	152
neutron number	90
Relative Atomic Mass	151,919738646 ± 0,00000109 Da
g-factor	0
natural abundance	26,74 ± 0,09
radioaktivitet	stable isotope
halveringstid	Not Radioactive ☢️
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1933
Paritet	+

¹⁵³Sm

mass number	153
neutron number	91
Relative Atomic Mass	152,922103576 ± 0,0000011 Da
g-factor	-0,014 ± 0,002
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	46,2846 ± 0,0023 h
spin	3/2
nuclear quadrupole moment	1,3 ± 0,12
opdagelsesdato	1938
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁵⁴Sm

mass number	154
neutron number	92
Relative Atomic Mass	153,922215756 ± 0,0000014 Da
g-factor	0
natural abundance	22,74 ± 0,14
radioaktivitet	☢️ radioactive element
halveringstid
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1933
Paritet	+

decay mode	Intensitet
2β⁻ (double β⁻ decay)

¹⁵⁵Sm

mass number	155
neutron number	93
Relative Atomic Mass	154,924646645 ± 0,000001429 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	22,18 ± 0,06 m
spin	3/2
nuclear quadrupole moment	1,13 ± 0,13
opdagelsesdato	1951
Paritet	-

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁵⁶Sm

mass number	156
neutron number	94
Relative Atomic Mass	155,925538191 ± 0,000009148 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	9,4 ± 0,2 h
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1951
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁵⁷Sm

mass number	157
neutron number	95
Relative Atomic Mass	156,928418598 ± 0,000004759 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	8,03 ± 0,07 m
spin	3/2
nuclear quadrupole moment
opdagelsesdato	1973
Paritet	-

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁵⁸Sm

mass number	158
neutron number	96
Relative Atomic Mass	157,929949262 ± 0,000005133 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	5,3 ± 0,03 m
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1970
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁵⁹Sm

mass number	159
neutron number	97
Relative Atomic Mass	158,93321713 ± 0,00000637 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	11,37 ± 0,15 s
spin	5/2
nuclear quadrupole moment
opdagelsesdato	1986
Paritet	-

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁶⁰Sm

mass number	160
neutron number	98
Relative Atomic Mass	159,935337032 ± 0,0000021 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	9,6 ± 0,3 s
spin	0
nuclear quadrupole moment	0
opdagelsesdato	1986
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁶¹Sm

mass number	161
neutron number	99
Relative Atomic Mass	160,939160062 ± 0,000007318 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	4,8 ± 0,4 s
spin	7/2
nuclear quadrupole moment
opdagelsesdato	1998
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁶²Sm

mass number	162
neutron number	100
Relative Atomic Mass	161,941621687 ± 0,000003782 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	2,7 ± 0,3 s
spin	0
nuclear quadrupole moment	0
opdagelsesdato	2005
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁶³Sm

mass number	163
neutron number	101
Relative Atomic Mass	162,945679085 ± 0,0000079 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	1,3 ± 0,5 s
spin	1/2
nuclear quadrupole moment	0
opdagelsesdato	2012
Paritet	-

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁶⁴Sm

mass number	164
neutron number	102
Relative Atomic Mass	163,948550061 ± 0,0000044 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	1,43 ± 0,24 s
spin	0
nuclear quadrupole moment	0
opdagelsesdato	2012
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

¹⁶⁵Sm

mass number	165
neutron number	103
Relative Atomic Mass	164,95329 ± 0,000429 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	980 ± 210 ms
spin	5/2
nuclear quadrupole moment
opdagelsesdato	2012
Paritet	-

decay mode	Intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

¹⁶⁶Sm

mass number	166
neutron number	104
Relative Atomic Mass	165,956575 ± 0,000429 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid	800 ± 630 ms
spin	0
nuclear quadrupole moment	0
opdagelsesdato	2017
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)	100%

¹⁶⁷Sm

mass number	167
neutron number	105
Relative Atomic Mass	166,962072 ± 0,000537 Da
g-factor
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid
spin	7/2
nuclear quadrupole moment
opdagelsesdato	2018
Paritet	-

decay mode	Intensitet
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)

¹⁶⁸Sm

mass number	168
neutron number	106
Relative Atomic Mass	167,966033 ± 0,000322 Da
g-factor	0
natural abundance
radioaktivitet	☢️ radioactive element
halveringstid
spin	0
nuclear quadrupole moment	0
opdagelsesdato	2018
Paritet	+

decay mode	Intensitet
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)

historie

opdager eller opfinder	Paul Émile Lecoq de Boisbaudran
fundsted	France
opdagelsesdato	1879
etymologi	Named after the mineral samarskite.
udtale	seh-MER-i-em (engelsk)

source

Forekomst
Abundance in Earth's crust	7,05 mg/kg
natural abundance (verdenshave)	0,00000045 mg/L
natural abundance (menneskelige krop)
natural abundance (Meteoroid)	0,000017 %
natural abundance (Solen)	0,0000001 %
Abundance in Universe	0,0000005 %

Nuclear Screening Constants

1	s	1.2217
2	p	4.269
2	s	16.2652
3	d	13.7711
3	p	19.5815
3	s	19.9736
4	d	33.7604
4	f	38.4684
4	p	30.912
4	s	29.7076
5	p	45.719
5	s	43.751
6	s	53.9882

Samarium on ChemicalAid

Samarium (Sm)

Fysisk Egenskab

Kemisk Egenskab

øvrige

Isotopes of Samarium

128Sm

129Sm

130Sm

131Sm

132Sm

133Sm

134Sm

135Sm

136Sm

137Sm

138Sm

139Sm

140Sm

141Sm

142Sm

143Sm

144Sm

145Sm

146Sm

147Sm

148Sm

149Sm

150Sm

151Sm

152Sm

153Sm

154Sm

155Sm

156Sm

157Sm

158Sm

159Sm

160Sm

161Sm

162Sm

163Sm

164Sm

165Sm

166Sm

167Sm

168Sm

historie

source

Nuclear Screening Constants

¹²⁸Sm

¹²⁹Sm

¹³⁰Sm

¹³¹Sm

¹³²Sm

¹³³Sm

¹³⁴Sm

¹³⁵Sm

¹³⁶Sm

¹³⁷Sm

¹³⁸Sm

¹³⁹Sm

¹⁴⁰Sm

¹⁴¹Sm

¹⁴²Sm

¹⁴³Sm

¹⁴⁴Sm

¹⁴⁵Sm

¹⁴⁶Sm

¹⁴⁷Sm

¹⁴⁸Sm

¹⁴⁹Sm

¹⁵⁰Sm

¹⁵¹Sm

¹⁵²Sm

¹⁵³Sm

¹⁵⁴Sm

¹⁵⁵Sm

¹⁵⁶Sm

¹⁵⁷Sm

¹⁵⁸Sm

¹⁵⁹Sm

¹⁶⁰Sm

¹⁶¹Sm

¹⁶²Sm

¹⁶³Sm

¹⁶⁴Sm

¹⁶⁵Sm

¹⁶⁶Sm

¹⁶⁷Sm

¹⁶⁸Sm