62 – Samarium, Sm

PERIODIC TABLE

Spectrograph
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Elemental Tile
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Samarium from Samarskite
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Samarium is a moderately hard silvery metal that readily oxidizes in air and usually has the oxidation state +3, has no significant biological role and is only slightly toxic.

1879 by Paul Emile Lecoq de Boisbaudran, France.

DISCOVERY

From the name of the mineral, Samarskite, in turn honouring Vasili Samarsky-Bykhovets.

ETYMOLOGY

Samarium

Element

Sm

Symbol

62 Atomic Number

Lanthanide

Classification

7440-19-9

CAS Number

Silver

Elemental Colour

-

Refractive Index

0.270 Poisson Ratio

20.388 cm³

Molar Volume

441.00M Pa, 4.352'3k Atm

4.352'3k Atm

Brinell Hardness

1.40 Mohs Hardness

412.00M Pa, 4.066'1k Atm

4.066'1k Atm

Vickers Hardness

2,130 m/s, Mach 6.209'9

2,130 m/s

Speed of Sound

38.00G Pa, 375.030'8k Atm

375.030'8k Atm

Bulk Modulus

20.00G Pa, 197.384'7k Atm

197.384'7k Atm

Shear Modulus

50.00G Pa, 493.461'6k Atm

493.461'6k Atm

Young Modulus

Allotropes

1,345.15 K, 1,072.00 °C

1,072.00 °C

Melting Point

2,076.15 K, 1,803.00 °C

1,803.00 °C

Boiling Point

423.15 K, 150.00 °C

150.00 °C

Automatic Ignition

-

Flashpoint

-

Critical Temperature

-

Critical Pressure

13.000'000 W/(m K)

Thermal Conductivity

0.000'012'7 K^-1

Thermal Expansion

196.00 J/(kg K)

Specific Heat

8.600 kJ/mol

Heat Fusion

175.000 kJ/mol

Heat Vaporisation

-

Heat Combustion

-

Curie Point

106.00 K, -167.15 °C

-167.15 °C

Neel Point

-

Adiabatic Index

Solid

Phase

Conductor

Electrical Type

1.10M S/m

Conductivity

940.00n Ω.m

Resistivity

-

Superconducting Point

Paramagnetic

Magnetic Type

0.000'000'111'0

Mass Susceptibility

0.000'000'016'690'00

Molar Susceptibility

0.000'816'180'00

Volume Susceptibility

Material Composition

0.000'000'5 %

Universe

0.000'017 %

Meteorites

0.000'000'1 %

Sun

0.000'6 %

Earth Crust

0.000'000'000'05 %

Oceans

-

Humans

149.910'785'1

Atomic Weight

238 pm

Atomic Radius

172 pm

Covalent Radius Single Bond

134 pm

Covalent Radius Double Bond

-

Covalent Radius Triple Bond

229 pm

Van der Waals Radius

[Xe]6s²4f⁶

Electron Configuration

Rhombohedral, Primitive

Crystal Structure

7.353'00 g/cm³

Density as Solid

7.160'00 g/cm³

Density as Liquid

-

Density as Gas

R_3m

Space Group Name

166 Space Group Number

π/2, π/2 & 2π/3

Lattice Angles

362.1, 362.1 & 2625 pm

Lattice Constants

3 Valence

1.17 Electronegativity

15.63 kJ/mol

Electron Affinity

Ionisation Energy

Stable

Half Life

Stable

Lifetime

4f⁶ = 4, 3, +2, +1/2

Quantum Numbers

39.000'00 b σ_s

Neutron Cross Section

5,922.000'00 b σ_a

Neutron Mass Absorption

Stable Isotopes

Unstable Isotopes

Isotopes Overview

Isotope	Stability	Symbol	Type	Protons		Neutrons		Spin	Parity	Mass		Abundance		Mass Measure	Mass Excess		Binding Energy		Dipole Moment		Quadrupole Moment		Halflife in Years		Halflife in Seconds		A01 Decay Probability		A01 Decay Mode	A01 Decay Energy		A01 Decay Daughter	A01 Decay Link	A02 Decay Mode	A02 Decay Energy		A02 Decay Daughter	A02 Decay Link	Y01 Decay Product Yield		Y01 Decay Product Nuclide	Y02 Decay Product Yield		Y02 Decay Product Nuclide	Y03 Decay Product Yield		Y03 Decay Product Nuclide	Y04 Decay Product Yield		Y04 Decay Product Nuclide
Isotope_062_sm_128_u	Unstable	¹²⁸Sm	Boson	62	p	66	n	0	1	127.958'080'000'0	u	~ 0	%	~ 0	-39.048'000'000'0	MeV	7.997'000'000'0	MeV	-		-		1.58E-8	year	500.000	milli-seconds ( x⁻³ )	?	%	β+	7,976.000	keV	¹²⁸Pm	¹²⁸Sm > [ ? % , β+ , 7,976.0 keV ] > ¹²⁸Pm	p	-1,281.000	keV	¹²⁷Pm	¹²⁸Sm > [ , p , -1,281.0 keV ] > ¹²⁷Pm	?	%	¹²⁸Xe	?	%	¹²⁵Te	?	%	¹²⁷I	?	%	¹²⁶Te
Isotope_062_sm_129_u	Unstable	¹²⁹Sm	Fermion	62	p	67	n	5/2	1	128.954'640'000'0	u	~ 0	%	~ 0	-42.253'000'000'0	MeV	8.023'8.023'8.023'8.023	MeV	-		-		1.74E-8	year	550.000	milli-seconds ( x⁻³ )	100.000'000	%	β+	9,672.000	keV	¹²⁹Pm	¹²⁹Sm > [ 100 % , β+ , 9,672.0 keV ] > ¹²⁹Pm						?	%	¹²⁹Xe	?	%	¹²⁸Xe
Isotope_062_sm_130_u	Unstable	¹³⁰Sm	Boson	62	p	68	n	0	1	129.948'920'000'0	u	~ 0	%	~ 0	-47.581'000'000'0	MeV	8.064'000'000'0	MeV	-		-		3.17E-8	year	1,000.000	milliseconds ( x⁻³ )	?	%	β+	6,868.000	keV	¹³⁰Pm	¹³⁰Sm > [ ? % , β+ , 6,868.0 keV ] > ¹³⁰Pm						?	%	¹²⁹Xe	?	%	¹³⁰Xe
Isotope_062_sm_131_u	Unstable	¹³¹Sm	Fermion	62	p	69	n	5/2	1	130.946'110'000'0	u	~ 0	%	~ 0	-50.198'000'000'0	MeV	8.084'000'000'0	MeV	-		-		3.80E-8	year	1.200	seconds ( x⁰ )	100.000'000	%	β+	8,516.000	keV	¹³¹Pm	¹³¹Sm > [ 100 % , β+ , 8,516.0 keV ] > ¹³¹Pm	β+p	?	keV	¹³⁰Nd	¹³¹Sm > [ , β+p , ? keV ] > ¹³⁰Nd	100.000'000	%	¹³¹Xe	?	%	¹³⁰Xe
Isotope_062_sm_132_u	Unstable	¹³²Sm	Boson	62	p	70	n	0	1	131.940'690'000'0	u	~ 0	%	~ 0	-55.247'000'000'0	MeV	8.122'000'000'0	MeV	-		-		1.27E-7	year	4.000	seconds ( x⁰ )	100.000'000	%	β+	5,443.000	keV	¹³²Pm	¹³²Sm > [ 100 % , β+ , 5,443.0 keV ] > ¹³²Pm	β+p	?	keV	¹³¹Nd	¹³²Sm > [ , β+p , ? keV ] > ¹³¹Nd	0.000'050	%	¹³¹Xe	?	%	¹³²Xe	?	%	¹³⁰Xe
Isotope_062_sm_133_u	Unstable	¹³³Sm	Fermion	62	p	71	n	5/2	1	132.938'670'000'0	u	~ 0	%	~ 0	-57.129'000'000'0	MeV	8.136'000'000'0	MeV	-		-		9.19E-8	year	2.900	seconds ( x⁰ )	100.000'000	%	β+	7,257.000	keV	¹³³Pm	¹³³Sm > [ 100 % , β+ , 7,257.0 keV ] > ¹³³Pm	β+p	?	keV	¹³²Nd	¹³³Sm > [ , β+p , ? keV ] > ¹³²Nd	100.000'000	%	¹³³Cs	?	%	¹³²Xe
Isotope_062_sm_134_u	Unstable	¹³⁴Sm	Boson	62	p	72	n	0	1	133.933'970'000'0	u	~ 0	%	~ 0	-61.507'000'000'0	MeV	8.168'000'000'0	MeV	-		-		3.17E-7	year	10.000	seconds ( x⁰ )	100.000'000	%	β+	4,210.000	keV	¹³⁴Pm	¹³⁴Sm > [ 100 % , β+ , 4,210.0 keV ] > ¹³⁴Pm						100.000'000	%	¹³⁴Ba
Isotope_062_sm_135_u	Unstable	¹³⁵Sm	Fermion	62	p	73	n	7/2	1	134.932'520'000'0	u	~ 0	%	~ 0	-62.857'216'000'0	MeV	8.177'626'000'0	MeV	-		-		3.26E-7	year	10.300	seconds ( x⁰ )	100.000'000	%	β+	6,098.000	keV	¹³⁵Pm	¹³⁵Sm > [ 100 % , β+ , 6,098.0 keV ] > ¹³⁵Pm	β+p	?	keV	¹³⁴Nd	¹³⁵Sm > [ , β+p , ? keV ] > ¹³⁴Nd	100.000'000	%	¹³⁵Ba	0.020'000	%	¹³⁴Ba
Isotope_062_sm_136_u	Unstable	¹³⁶Sm	Boson	62	p	74	n	0	1	135.928'275'527'0	u	~ 0	%	~ 0	-66.810'917'000'0	MeV	8.205'916'000'0	MeV	-		-		1.49E-6	year	46.980	seconds ( x⁰ )	100.000'000	%	β+	3,364.900	keV	¹³⁶Pm	¹³⁶Sm > [ 100 % , β+ , 3,364.9 keV ] > ¹³⁶Pm						?	%	¹³⁶Ba
Isotope_062_sm_137_u	Unstable	¹³⁷Sm	Fermion	62	p	75	n	9/2	-1	136.926'971'746'0	u	~ 0	%	~ 0	-68.025'381'000'0	MeV	8.213'798'000'0	MeV	-		-		1.43E-6	year	45.000	seconds ( x⁰ )	100.000'000	%	β+	5,025.300	keV	¹³⁷Pm	¹³⁷Sm > [ 100 % , β+ , 5,025.3 keV ] > ¹³⁷Pm						?	%	¹³⁷Ba
Isotope_062_sm_138_u	Unstable	¹³⁸Sm	Boson	62	p	76	n	0	1	137.923'243'961'0	u	~ 0	%	~ 0	-71.497'790'000'0	MeV	8.237'928'000'0	MeV	-		-		6.02E-6	year	190.020	seconds ( x⁰ )	100.000'000	%	β+	2,420.300	keV	¹³⁸Pm	¹³⁸Sm > [ 100 % , β+ , 2,420.3 keV ] > ¹³⁸Pm						?	%	¹³⁸Ba
Isotope_062_sm_139_u	Unstable	¹³⁹Sm	Fermion	62	p	77	n	1/2	1	138.922'296'605'0	u	~ 0	%	~ 0	-72.380'247'000'0	MeV	8.243'078'000'0	MeV	-0.530'000'000'0	nm	-		4.88E-6	year	154.020	seconds ( x⁰ )	100.000'000	%	β+	4,094.100	keV	¹³⁹Pm	¹³⁹Sm > [ 100 % , β+ , 4,094.1 keV ] > ¹³⁹Pm						?	%	¹³⁹La
Isotope_062_sm_140_u	Unstable	¹⁴⁰Sm	Boson	62	p	78	n	0	1	139.918'994'687'0	u	~ 0	%	~ 0	-75.455'963'000'0	MeV	8.263'820'000'0	MeV	-		-		2.82E-5	year	889.200	seconds ( x⁰ )	100.000'000	%	β+	1,782.400	keV	¹⁴⁰Pm	¹⁴⁰Sm > [ 100 % , β+ , 1,782.4 keV ] > ¹⁴⁰Pm						100.000'000	%	¹⁴⁰Ce
Isotope_062_sm_141_u	Unstable	¹⁴¹Sm	Fermion	62	p	79	n	1/2	1	140.918'476'488'0	u	~ 0	%	~ 0	-75.938'662'000'0	MeV	8.265'879'000'0	MeV	-0.737'000'000'0	nm	-		1.94E-5	year	612.000	seconds ( x⁰ )	100.000'000	%	β+	3,562.100	keV	¹⁴¹Pm	¹⁴¹Sm > [ 100 % , β+ , 3,562.1 keV ] > ¹⁴¹Pm						100.000'000	%	¹⁴¹Pr
Isotope_062_sm_142_u	Unstable	¹⁴²Sm	Boson	62	p	80	n	0	1	141.915'197'641'0	u	~ 0	%	~ 0	-78.992'889'000'0	MeV	8.286'017'000'0	MeV	-		-		1.38E-4	year	4.349	kilo-seconds ( x³ )	100.000'000	%	β+	1,141.800	keV	¹⁴²Pm	¹⁴²Sm > [ 100 % , β+ , 1,141.8 keV ] > ¹⁴²Pm						100.000'000	%	¹⁴²Nd
Isotope_062_sm_143_u	Unstable	¹⁴³Sm	Fermion	62	p	81	n	3/2	1	142.914'628'338'0	u	~ 0	%	~ 0	-79.523'191'000'0	MeV	8.288'224'000'0	MeV	1.010'000'000'0	nm	0.410'000'000'0	b	1.66E-5	year	525.000	seconds ( x⁰ )	100.000'000	%	β+	2,420.340	keV	¹⁴³Pm	¹⁴³Sm > [ 100 % , β+ , 2,420.34 keV ] > ¹⁴³Pm						100.000'006	%	¹⁴³Nd
Isotope_062_sm_144_s	Stable	¹⁴⁴Sm	Boson	62	p	82	n	0	1	143.911'999'478'0	u	3.070'000	%	4.418'098'384'0	-81.971'958'000'0	MeV	8.303'723'000'0	MeV	-		-		-				?	%	2β+	-263.190	keV	¹⁴⁴Nd	¹⁴⁴Sm > [ ? % , 2β+ , -263.19 keV ] > ¹⁴⁴Nd						?	%	¹⁴⁰Ce
Isotope_062_sm_145_u	Unstable	¹⁴⁵Sm	Fermion	62	p	83	n	7/2	-1	144.913'410'353'0	u	~ 0	%	~ 0	-80.657'737'000'0	MeV	8.293'057'000'0	MeV	-1.110'000'000'0	nm	-0.590'000'000'0	b	9.32E-1	year	29.421	mega-seconds ( x⁶ )	100.000'000	%	ϵ	616.030	keV	¹⁴⁵Pm	¹⁴⁵Sm > [ 100 % , ϵ , 616.03 keV ] > ¹⁴⁵Pm						100.000'000	%	¹⁴⁵Nd	0.000'000	%	¹⁴¹Pr
Isotope_062_sm_146_u	Unstable	¹⁴⁶Sm	Boson	62	p	84	n	0	1	145.913'040'900'0	u	~ 0	%	~ 0	-81.001'880'000'0	MeV	8.293'895'000'0	MeV	-		-		1.03E+8	years	3.254	peta-seconds ( x¹⁵ )	100.000'000	%	α	2,528.400	keV	¹⁴²Nd	¹⁴⁶Sm > [ 100 % , α , 2,528.4 keV ] > ¹⁴²Nd						100.000'000	%	¹⁴²Nd
Isotope_062_sm_147_u	Unstable	¹⁴⁷Sm	Fermion	62	p	85	n	7/2	-1	146.914'897'923'0	u	14.990'000	%	22.022'543'198'7	-79.272'075'000'0	MeV	8.280'614'000'0	MeV	-0.814'800'000'0	nm	-0.260'000'000'0	b	1.06E+11	years	3.351	exa-seconds ( x¹⁸ )	100.000'000	%	α	2,310.460	keV	¹⁴³Nd	¹⁴⁷Sm > [ 100 % , α , 2,310.46 keV ] > ¹⁴³Nd						100.000'000	%	¹⁴³Nd
Isotope_062_sm_148_u	Unstable	¹⁴⁸Sm	Boson	62	p	86	n	0	1	147.914'822'674'0	u	11.240'000	%	16.625'626'068'6	-79.342'169'000'0	MeV	8.279'673'000'0	MeV	-		-		6.98E+15	years	220.272	zetta-seconds ( x²¹ )	100.000'000	%	α	1,986.080	keV	¹⁴⁴Nd	¹⁴⁸Sm > [ 100 % , α , 1,986.08 keV ] > ¹⁴⁴Nd						100.000'000	%	¹⁴⁰Ce
Isotope_062_sm_149_s	Stable	¹⁴⁹Sm	Fermion	62	p	87	n	7/2	-1	148.917'184'735'0	u	13.820'000	%	20.580'354'930'4	-77.141'922'000'0	MeV	8.263'508'000'0	MeV	-0.671'700'000'0	nm	0.075'000'000'0	b	-				?	%	α	1,870.300	keV	¹⁴⁵Nd	¹⁴⁹Sm > [ ? % , α , 1,870.3 keV ] > ¹⁴⁵Nd						?	%	¹⁴⁵Nd
Isotope_062_sm_150_s	Stable	¹⁵⁰Sm	Boson	62	p	88	n	0	1	149.917'275'539'0	u	7.380'000	%	11.063'894'934'8	-77.057'339'000'0	MeV	8.261'663'000'0	MeV	-		-		-
Isotope_062_sm_151_u	Unstable	¹⁵¹Sm	Fermion	62	p	89	n	5/9	-1	150.919'932'409'0	u	~ 0	%	~ 0	-74.582'481'000'0	MeV	8.244'012'000'0	MeV	-0.363'000'000'0	nm	0.670'000'000'0	b	8.88E+1	years	2.802	giga-seconds ( x⁹ )	100.000'000	%	β-	76.613	keV	¹⁴¹Eu	¹⁵¹Sm > [ 100 % , β- , 76.613 keV ] > ¹⁴¹Eu						100.000'000	%	¹⁵¹Eu
Isotope_062_sm_152_s	Stable	¹⁵²Sm	Boson	62	p	90	n	0	1	151.919'732'425'0	u	26.750'000	%	40.638'528'423'7	-74.768'765'000'0	MeV	8.244'102'000'0	MeV	-		-		-
Isotope_062_sm_153_u	Unstable	¹⁵³Sm	Fermion	62	p	91	n	3/2	1	152.922'097'356'0	u	~ 0	%	~ 0	-72.565'846'000'0	MeV	8.228'574'000'0	MeV	-0.021'600'000'0	nm	1.260'000'000'0	b	5.28E-3	year	166.620	kilo-seconds ( x³ )	100.000'000	%	β-	807.621	keV	¹⁵³Eu	¹⁵³Sm > [ 100 % , β- , 807.621 keV ] > ¹⁵³Eu						100.000'000	%	¹⁵³Eu
Isotope_062_sm_154_s	Stable	¹⁵⁴Sm	Boson	62	p	92	n	0	1	153.922'209'273'0	u	22.750'000	%	35.017'302'609'6	-72.461'596'000'0	MeV	8.226'876'000'0	MeV	-		-		-				?	%	2β-	1,251.620	keV	¹⁵⁴Gd	¹⁵⁴Sm > [ ? % , 2β- , 1,251.62 keV ] > ¹⁵⁴Gd						?	%	¹⁵⁴Gd
Isotope_062_sm_155_u	Unstable	¹⁵⁵Sm	Fermion	62	p	93	n	3/2	-1	154.924'640'161'0	u	~ 0	%	~ 0	-70.197'239'000'0	MeV	8.211'264'000'0	MeV	-		1.130'000'000'0	b	4.25E-5	year	1.340	kilo-seconds ( x³ )	100.000'000	%	β-	1,627.230	keV	¹⁵⁵Eu	¹⁵⁵Sm > [ 100 % , β- , 1,627.23 keV ] > ¹⁵⁵Eu						100.000'000	%	¹⁵⁵Gd
Isotope_062_sm_156_u	Unstable	¹⁵⁶Sm	Boson	62	p	94	n	0	1	155.925'527'887'0	u	~ 0	%	~ 0	-69.370'326'000'0	MeV	8.205'066'000'0	MeV	-		-		1.08E-3	year	33.984	kilo-seconds ( x³ )	100.000'000	%	β-	722.500	keV	¹⁵⁶Eu	¹⁵⁶Sm > [ 100 % , β- , 722.5 keV ] > ¹⁵⁶Eu						100.000'000	%	¹⁵⁶Gd
Isotope_062_sm_157_u	Unstable	¹⁵⁷Sm	Fermion	62	p	95	n	3/2	-1	156.928'358'717'0	u	~ 0	%	~ 0	-66.733'426'000'0	MeV	8.187'419'000'0	MeV	-		-		1.58E-5	year	499.800	seconds ( x⁰ )	100.000'000	%	β-	2,743.000	keV	¹⁵⁷Eu	¹⁵⁷Sm > [ 100 % , β- , 2,743.0 keV ] > ¹⁵⁷Eu						100.000'000	%	¹⁵⁷Gd
Isotope_062_sm_158_u	Unstable	¹⁵⁸Sm	Boson	62	p	96	n	0	1	157.929'991'317'0	u	~ 0	%	~ 0	-65.212'669'000'0	MeV	8.177'059'000'0	MeV	-		-		1.01E-5	year	319.980	seconds ( x⁰ )	100.000'000	%	β-	1,999.000	keV	¹⁵⁸Eu	¹⁵⁸Sm > [ 100 % , β- , 1,999.0 keV ] > ¹⁵⁸Eu						100.000'000	%	¹⁵⁸Gd
Isotope_062_sm_159_u	Unstable	¹⁵⁹Sm	Fermion	62	p	97	n	5/2	-1	158.933'211'271'0	u	~ 0	%	~ 0	-62.213'301'000'0	MeV	8.157'530'000'0	MeV	-		-		3.60E-7	year	11.370	seconds ( x⁰ )	100.000'000	%	β-	3,840.000	keV	¹⁵⁹Eu	¹⁵⁹Sm > [ 100 % , β- , 3,840.0 keV ] > ¹⁵⁹Eu						100.000'000	%	¹⁵⁹Tb
Isotope_062_sm_160_u	Unstable	¹⁶⁰Sm	Boson	62	p	98	n	0	1	159.935'140'000'0	u	~ 0	%	~ 0	-60.417'000'000'0	MeV	8.146'000'000'0	MeV	-		-		3.04E-7	year	9.600	seconds ( x⁰ )	100.000'000	%	β-	2,952.000	keV	¹⁶⁰Eu	¹⁶⁰Sm > [ 100 % , β- , 2,952.0 keV ] > ¹⁶⁰Eu						?	%	¹⁶⁰Dy
Isotope_062_sm_161_u	Unstable	¹⁶¹Sm	Fermion	62	p	99	n	7/2	1	160.938'830'000'0	u	~ 0	%	~ 0	-56.979'000'000'0	MeV	8.124'000'000'0	MeV	-		-		1.52E-7	year	4.800	seconds ( x⁰ )	100.000'000	%	β-	4,797.000	keV	¹⁶¹Eu	¹⁶¹Sm > [ 100 % , β- , 4,797.0 keV ] > ¹⁶¹Eu						100.000'000	%	¹⁶¹Dy
Isotope_062_sm_162_u	Unstable	¹⁶²Sm	Boson	62	p	100	n	0	1	161.941'220'000'0	u	~ 0	%	~ 0	-54.753'000'000'0	MeV	8.110'000'000'0	MeV	-		-		7.61E-8	year	2.400	seconds ( x⁰ )	100.000'000	%	β-	3,894.000	keV	¹⁶²Eu	¹⁶²Sm > [ 100 % , β- , 3,894.0 keV ] > ¹⁶²Eu						100.000'000	%	¹⁶²Dy
Isotope_062_sm_163_u	Unstable	¹⁶³Sm	Fermion	62	p	101	n	1/2	-1	162.945'360'000'0	u	~ 0	%	~ 0	-50.897'000'000'0	MeV	8.086'000'000'0	MeV	-		-		3.17E-8	year	1,000.000	milliseconds ( x⁻³ )	?	%	β-	5,729.000	keV	¹⁶³Eu	¹⁶³Sm > [ ? % , β- , 5,729.0 keV ] > ¹⁶³Eu						?	%	¹⁶³Dy
Isotope_062_sm_164_u	Unstable	¹⁶⁴Sm	Boson	62	p	102	n	0	1	163.948'280'000'0	u	~ 0	%	~ 0	-48.177'000'000'0	MeV	8.069'000'000'0	MeV	-		-		1.58E-8	year	500.000	milli-seconds ( x⁻³ )	?	%	β-	4,928.000	keV	¹⁶⁴Eu	¹⁶⁴Sm > [ ? % , β- , 4,928.0 keV ] > ¹⁶⁴Eu						?	%	¹⁶⁴Dy
Isotope_062_sm_165_u	Unstable	¹⁶⁵Sm	Fermion	62	p	103	n	5/2	-1	164.952'980'000'0	u	~ 0	%	~ 0	-43.799'000'000'0	MeV	8.043'000'000'0	MeV	-		-		6.34E-9	year	200.000	milli-seconds ( x⁻³ )	?	%	β-	6,760.000	keV	¹⁶⁵Eu	¹⁶⁵Sm > [ ? % , β- , 6,760.0 keV ] > ¹⁶⁵Eu						?	%	¹⁶⁵Ho

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