TERBIUM, Tb (65)

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ATOMIC ARCHITECTURE

Spectrograph

Elemental Tile

Terbium from Xenotime

···

OVERVIEW

TERBIUM

Tb (65)

ˈtɜːrbiəm

PHONETICS

IDENTIFICATION

Terbium is a silvery-white rare earth metal that is malleable, ductile and very hard. Never found in nature as a free element, it is contained in many minerals, including cerite, gadolinite, monazite, xenotime and euxenite.

ELEMENT BRIEF

1843 by Carl Mosander, Sweden.

DISCOVERY

From the name of Ytterby, a town in Sweden.

ETYMOLOGY

Terbium

ELEMENT

Tb

SYMBOL

65

ATOMIC NUMBER

7440-27-9

CAS NUMBER

PHYSICAL

ELEMENTAL SPECTRUM

Silver

ELEMENTAL COLOUR

-

REFRACTIVE INDEX

0.260

POISSON RATIO

19.336 cm³

MOLAR VOLUME

677.00M Pa, 6.681'5k Atm

BRINELL HARDNESS

2.30

MOHS HARDNESS

863.00M Pa, 8.517'1k Atm

VICKERS HARDNESS

2,620 m/s, Mach 7.638'5

SPEED OF SOUND

38.70G Pa, 381.939'3k Atm

BULK MODULUS

22.00G Pa, 217.123'1k Atm

SHEAR MODULUS

56.00G Pa, 552.677'0k Atm

YOUNG MODULUS

ALLOTROPES

THERMODYNAMIC

1,629.15 K, 1,356.00 °C

MELTING POINT

3,503.15 K, 3,230.00 °C

BOILING POINT

-

AUTOMATIC IGNITION

-

FLASHPOINT

-

CRITICAL TEMPERATURE

-

CRITICAL PRESSURE

11.000'000 W/(m K)

THERMAL CONDUCTIVITY

0.000'010'3 K¯¹

THERMAL EXPANSION

182.00 J/(kg K)

SPECIFIC HEAT

10.800 kJ/mol

HEAT FUSION

295.000 kJ/mol

HEAT VAPORISATION

-

HEAT COMBUSTION

222.00 K, -51.15 °C

CURIE POINT

230.00 K, -43.15 °C

NEEL POINT

-

ADIABATIC INDEX

Solid

PHASE

ELECTROMAGNETIC

Conductor

ELECTRICAL TYPE

830.00k S/m

CONDUCTIVITY

1.20μ Ω.m

RESISTIVITY

-

SUPERCONDUCTING POINT

Paramagnetic

MAGNETIC TYPE

0.000'013'600'0

MASS SUSCEPTIBILITY

0.000'002'161'385'00

MOLAR SUSCEPTIBILITY

0.111'778'400'00

VOLUME SUSCEPTIBILITY

STRUCTURE

Lanthanide

CLASSIFICATION

158.925'346'8

ATOMIC WEIGHT

225 pm

ATOMIC RADIUS

168 pm

COVALENT RADIUS SINGLE BOND

135 pm

COVALENT RADIUS DOUBLE BOND

-

COVALENT RADIUS TRIPLE BOND

221 pm

VAN DER WAALS RADIUS

[Xe]6s²4f⁹

ELECTRON CONFIGURATION

Hexagonal, Close Packed Single

CRYSTAL STRUCTURE

8.219'00 g/cm³

DENSITY AS SOLID

7.650'00 g/cm³

DENSITY AS LIQUID

-

DENSITY AS GAS

p6₃/mmc

SPACE GROUP NAME

194

SPACE GROUP NUMBER

π/2, π/2 2π/3

LATTICE ANGLES

360.1, 360.1 569.36 pm

LATTICE CONSTANTS

REACTIVITY

3

VALENCE

-

ELECTRONEGATIVITY

112.41 kJ/mol

ELECTRON AFFINITY

IONISATION ENERGY

ELEMENTAL DISTRIBUTION

0.000'000'1 %

UNIVERSE

0.000'003'9 %

METEORITES

0.000'000'01 %

SUN

0.000'093 %

EARTH CRUST

0.000'000'000'01 %

OCEANS

-

HUMANS

ISOTOPES

Stable

HALF LIFE

Stable

LIFETIME

4f⁹ = 4, 3, -2, -1/2

QUANTUM NUMBERS

6.840'00 b σ_s

NEUTRON CROSS SECTION

23.400'00 b σ_a

NEUTRON MASS ABSORPTION

STABLE ISOTOPES

UNSTABLE ISOTOPES

ISOTOPIC CHAIN

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
Isotope_065_tb_136_u	Unstable	¹³⁶Tb	Fermion	65	p	71	n	?	0	135.961'380'000'0	u	~ 0	%	~ 0	-35.974'000'000'0	MeV	7.962'000'000'0	MeV	-		-		6.34E-9	year	200.000	milli-seconds ( x⁻³ )	?	%	β+	12,056.000	keV	¹³⁶Gd	¹³⁶Tb > [ ? % , β+ , 12,056.0 keV ] > ¹³⁶Gd						?	%	¹³⁵Ba	?	%	¹³⁶Ba
Isotope_065_tb_137_u	Unstable	¹³⁷Tb	Boson	65	p	72	n	11/2	-1	136.955'980'000'0	u	~ 0	%	~ 0	-41.004'000'000'0	MeV	7.999'000'000'0	MeV	-		-		1.90E-8	year	600.000	milli-seconds ( x⁻³ )	?	%	P	759.000	keV	¹³⁶Gd	¹³⁷Tb > [ ? % , P , 759.0 keV ] > ¹³⁶Gd	β+	9,187.000	keV	¹³⁷Gd	¹³⁷Tb > [ , β+ , 9,187.0 keV ] > ¹³⁷Gd	?	%	¹³⁷Ba	?	%	¹³⁵Ba	?	%	¹³⁶Ba
Isotope_065_tb_138_u	Unstable	¹³⁸Tb	Fermion	65	p	73	n	?	0	137.953'160'000'0	u	~ 0	%	~ 0	-43.631'000'000'0	MeV	8.019'000'000'0	MeV	-		-		2.54E-8	year	800.000	milli-seconds ( x⁻³ )	100.000'000	%	β+	11,125.000	keV	¹³⁸Gd	¹³⁸Tb > [ 100 % , β+ , 11,125.0 keV ] > ¹³⁸Gd	p	293.000	keV	¹³⁷Gd	¹³⁸Tb > [ , p , 293.0 keV ] > ¹³⁷Gd	?	%	¹³⁷Ba	?	%	¹³⁸Ba	?	%	¹³⁶Ba
Isotope_065_tb_139_u	Unstable	¹³⁹Tb	Boson	65	p	74	n	11/2	-1	138.948'290'000'0	u	~ 0	%	~ 0	-48.168'000'000'0	MeV	8.052'000'000'0	MeV	-		-		5.07E-8	year	1.600	seconds ( x⁰ )	100.000'000	%	β+	8,340.000	keV	¹³⁹Gd	¹³⁹Tb > [ 100 % , β+ , 8,340.0 keV ] > ¹³⁹Gd	β+p	?	keV	¹³⁸Eu	¹³⁹Tb > [ , β+p , ? keV ] > ¹³⁸Eu	100.000'000	%	¹³⁹La	?	%	¹³⁸Ba
Isotope_065_tb_140_u	Unstable	¹⁴⁰Tb	Fermion	65	p	75	n	5	0	139.945'805'049'0	u	~ 0	%	~ 0	-50.482'272'000'0	MeV	8.068'672'000'0	MeV	-		-		7.61E-8	year	2.400	seconds ( x⁰ )	100.000'000	%	β+	10,278.000	keV	¹⁴⁰Gd	¹⁴⁰Tb > [ 100 % , β+ , 10,278.0 keV ] > ¹⁴⁰Gd	β+p	?	keV	¹³⁹Eu	¹⁴⁰Tb > [ , β+p , ? keV ] > ¹³⁹Eu	100.000'000	%	¹⁴⁰Ce	0.260'000	%	¹³⁹La
Isotope_065_tb_141_u	Unstable	¹⁴¹Tb	Boson	65	p	76	n	5/2	-1	140.941'448'000'0	u	~ 0	%	~ 0	-54.540'837'000'0	MeV	8.097'475'000'0	MeV	-		-		1.11E-7	year	3.500	seconds ( x⁰ )	100.000'000	%	β+	7,661.000	keV	¹⁴¹Gd	¹⁴¹Tb > [ 100 % , β+ , 7,661.0 keV ] > ¹⁴¹Gd						100.000'000	%	¹⁴¹Pr	0.030'000	%	¹⁴⁰Ce
Isotope_065_tb_142_u	Unstable	¹⁴²Tb	Fermion	65	p	77	n	1	1	141.938'744'000'0	u	~ 0	%	~ 0	-57.060'000'000'0	MeV	8.115'000'000'0	MeV	-		-		1.89E-8	year	597.000	milli-seconds ( x⁻³ )	100.000'000	%	β+	8,878.000	keV	¹⁴²Gd	¹⁴²Tb > [ 100 % , β+ , 8,878.0 keV ] > ¹⁴²Gd	β+p	?	keV	¹⁴¹Eu	¹⁴²Tb > [ , β+p , ? keV ] > ¹⁴¹Eu	100.000'000	%	¹⁴²Nd	0.002'200	%	¹⁴¹Pr
Isotope_065_tb_143_u	Unstable	¹⁴³Tb	Boson	65	p	78	n	11/2	-1	142.935'121'000'0	u	~ 0	%	~ 0	-60.434'400'000'0	MeV	8.138'323'000'0	MeV	-		-		3.80E-7	year	12.000	seconds ( x⁰ )	100.000'000	%	β+	6,776.000	keV	¹⁴³Gd	¹⁴³Tb > [ 100 % , β+ , 6,776.0 keV ] > ¹⁴³Gd						100.000'006	%	¹⁴³Nd	?	%	¹⁴²Nd	?	%	¹³⁹La
Isotope_065_tb_144_u	Unstable	¹⁴⁴Tb	Fermion	65	p	79	n	1	1	143.933'045'000'0	u	~ 0	%	~ 0	-62.368'181'000'0	MeV	8.151'287'000'0	MeV	-		-		3.17E-8	year	1,000.000	milliseconds ( x⁻³ )	100.000'000	%	β+	8,369.100	keV	¹⁴⁴Gd	¹⁴⁴Tb > [ 100 % , β+ , 8,369.1 keV ] > ¹⁴⁴Gd	β+p	?	keV	¹⁴³Eu	¹⁴⁴Tb > [ , β+p , ? keV ] > ¹⁴³Eu	?	%	¹⁴³Nd	?	%	¹⁴⁰Ce
Isotope_065_tb_145_u	Unstable	¹⁴⁵Tb	Boson	65	p	80	n	3/2	1	144.929'274'000'0	u	~ 0	%	~ 0	-65.880'845'000'0	MeV	8.174'961'000'0	MeV	-		-		3.80E-5	year	1.200	kilo-seconds ( x³ )	?	%	β+	6,024.300	keV	¹⁴⁵Gd	¹⁴⁵Tb > [ ? % , β+ , 6,024.3 keV ] > ¹⁴⁵Gd						?	%	¹⁴¹Pr	?	%	¹⁴⁵Nd
Isotope_065_tb_146_u	Unstable	¹⁴⁶Tb	Fermion	65	p	81	n	1	1	145.927'246'584'0	u	~ 0	%	~ 0	-67.769'370'000'0	MeV	8.187'186'000'0	MeV	-		-		2.54E-7	year	8.000	seconds ( x⁰ )	100.000'000	%	β+	7,301.600	keV	¹⁴⁶Gd	¹⁴⁶Tb > [ 100 % , β+ , 7,301.6 keV ] > ¹⁴⁶Gd						?	%	¹⁴²Nd
Isotope_065_tb_147_u	Unstable	¹⁴⁷Tb	Boson	65	p	82	n	1/2	1	146.924'044'585'0	u	~ 0	%	~ 0	-70.752'013'000'0	MeV	8.206'688'000'0	MeV	-		-		1.87E-4	year	5.904	kilo-seconds ( x³ )	100.000'000	%	β+	3,588.800	keV	¹⁴⁷Gd	¹⁴⁷Tb > [ 100 % , β+ , 3,588.8 keV ] > ¹⁴⁷Gd						100.002'200	%	¹⁴³Nd
Isotope_065_tb_148_u	Unstable	¹⁴⁸Tb	Fermion	65	p	83	n	2	-1	147.924'271'701'0	u	~ 0	%	~ 0	-70.540'457'000'0	MeV	8.204'344'000'0	MeV	-		-		1.14E-4	year	3.600	kilo-seconds ( x³ )	100.000'000	%	β+	4,713.200	keV	¹⁴⁸Gd	¹⁴⁸Tb > [ 100 % , β+ , 4,713.2 keV ] > ¹⁴⁸Gd						?	%	¹⁴⁰Ce
Isotope_065_tb_149_u	Unstable	¹⁴⁹Tb	Boson	65	p	84	n	1/2	1	148.923'245'909'0	u	~ 0	%	~ 0	-71.495'975'000'0	MeV	8.209'864'000'0	MeV	1.350'000'000'0	nm	-		4.70E-4	year	14.820	kilo-seconds ( x³ )	83.300'000	%	β+	2,615.280	keV	¹⁴⁹Gd	¹⁴⁹Tb > [ 83.3 % , β+ , 2,615.28 keV ] > ¹⁴⁹Gd	α	4,077.540	keV	¹⁴⁵Eu	¹⁴⁹Tb > [ , α , 4,077.54 keV ] > ¹⁴⁵Eu	16.700'358	%	¹⁴⁵Nd	0.000'000	%	¹⁴¹Pr
Isotope_065_tb_150_u	Unstable	¹⁵⁰Tb	Fermion	65	p	85	n	2	-1	149.923'659'686'0	u	~ 0	%	~ 0	-71.110'545'000'0	MeV	8.206'371'000'0	MeV	-		-		3.96E-4	year	12.499	kilo-seconds ( x³ )	100.000'000	%	β+	3,636.030	keV	¹⁵⁰Gd	¹⁵⁰Tb > [ 100 % , β+ , 3,636.03 keV ] > ¹⁵⁰Gd	α	3,586.820	keV	¹⁴⁶Eu	¹⁵⁰Tb > [ , α , 3,586.82 keV ] > ¹⁴⁶Eu	100.050'000	%	¹⁴²Nd	?	%	¹⁵⁰Sm
Isotope_065_tb_151_u	Unstable	¹⁵¹Tb	Boson	65	p	86	n	1/2	1	150.923'102'543'0	u	~ 0	%	~ 0	-71.629'520'000'0	MeV	8.208'913'000'0	MeV	-		-		2.01E-3	year	63.392	kilo-seconds ( x³ )	100.000'000	%	β+	1,543.190	keV	¹⁵¹Gd	¹⁵¹Tb > [ 100 % , β+ , 1,543.19 keV ] > ¹⁵¹Gd	α	3,496.060	keV	¹⁴⁷Eu	¹⁵¹Tb > [ , α , 3,496.06 keV ] > ¹⁴⁷Eu	100.000'000	%	¹⁵¹Eu	0.009'501	%	¹⁴³Nd
Isotope_065_tb_152_u	Unstable	¹⁵²Tb	Fermion	65	p	87	n	2	-1	151.924'074'438'0	u	~ 0	%	~ 0	-70.724'206'000'0	MeV	8.202'052'000'0	MeV	0.900'000'000'0	nm	0.500'000'000'0	b	2.00E-3	year	62.986	kilo-seconds ( x³ )	100.000'000	%	β+	2,967.800	keV	¹⁵²Gd	¹⁵²Tb > [ 100 % , β+ , 2,967.8 keV ] > ¹⁵²Gd	α	3,153.400	keV	¹⁴⁸Eu	¹⁵²Tb > [ , α , 3,153.4 keV ] > ¹⁴⁸Eu	100.000'001	%	¹⁴⁰Ce	?	%	¹⁵²Sm
Isotope_065_tb_153_u	Unstable	¹⁵³Tb	Boson	65	p	88	n	5/2	1	152.923'434'588'0	u	~ 0	%	~ 0	-71.320'222'000'0	MeV	-71.320'222'000'0	MeV	3.500'000'000'0	nm	-		6.40E-3	year	202.003	kilo-seconds ( x³ )	100.000'000	%	β+	547.410	keV	¹⁵³Gd	¹⁵³Tb > [ 100 % , β+ , 547.41 keV ] > ¹⁵³Gd						100.000'000	%	¹⁵³Eu
Isotope_065_tb_154_u	Unstable	¹⁵⁴Tb	Fermion	65	p	89	n	0	1	153.924'678'019'0	u	~ 0	%	~ 0	-70.161'974'000'0	MeV	8.196'703'000'0	MeV	-		-		2.45E-3	year	77.397	kilo-seconds ( x³ )	100.000'000	%	β+	2,529.000	keV	¹⁵⁴Gd	¹⁵⁴Tb > [ 100 % , β+ , 2,529.0 keV ] > ¹⁵⁴Gd	β-	236.200	keV	¹⁵⁴Dy	¹⁵⁴Tb > [ , β- , 236.2 keV ] > ¹⁵⁴Dy	100.000'000	%	¹⁵⁴Gd	0.100'000	%	¹⁴²Nd	?	%	¹⁵⁰Sm
Isotope_065_tb_155_u	Unstable	¹⁵⁵Tb	Boson	65	p	90	n	3/2	1	154.923'505'236'0	u	~ 0	%	~ 0	-71.254'414'000'0	MeV	8.202'942'000'0	MeV	2.000'000'000'0	nm	-		1.46E-2	year	459.648	kilo-seconds ( x³ )	100.000'000	%	ϵ	822.700	keV	¹⁵⁵Gd	¹⁵⁵Tb > [ 100 % , ϵ , 822.7 keV ] > ¹⁵⁵Gd						100.000'000	%	¹⁵⁵Gd
Isotope_065_tb_156_u	Unstable	¹⁵⁶Tb	Fermion	65	p	91	n	3	-1	155.924'747'213'0	u	~ 0	%	~ 0	-70.097'520'000'0	MeV	8.194'682'000'0	MeV	1.410'000'000'0	nm	2.300'000'000'0	b	1.46E-2	year	461.981	kilo-seconds ( x³ )	100.000'000	%	β+	1,422.480	keV	¹⁵⁶Gd	¹⁵⁶Tb > [ 100 % , β+ , 1,422.48 keV ] > ¹⁵⁶Gd	β-	423.310	keV	¹⁵⁶Dy	¹⁵⁶Tb > [ , β- , 423.31 keV ] > ¹⁵⁶Dy	100.000'000	%	¹⁵⁶Gd	?	%	¹⁴⁰Ce	?	%	¹⁵²Sm
Isotope_065_tb_157_u	Unstable	¹⁵⁷Tb	Boson	65	p	92	n	3/2	1	156.924'024'604'0	u	~ 0	%	~ 0	-70.770'626'000'0	MeV	8.198'184'000'0	MeV	2.000'000'000'0	nm	-		6.98E+1	years	2.203	giga-seconds ( x⁹ )	100.000'000	%	ϵ	60.052	keV	¹⁵⁷Gd	¹⁵⁷Tb > [ 100 % , ϵ , 60.052 keV ] > ¹⁵⁷Gd						100.000'000	%	¹⁵⁷Gd
Isotope_065_tb_158_u	Unstable	¹⁵⁸Tb	Fermion	65	p	93	n	3	0	157.925'413'137'0	u	~ 0	%	~ 0	-69.477'216'000'0	MeV	8.189'195'000'0	MeV	1.758'000'000'0	nm	2.700'000'000'0	b	1.80E+2	years	5.684	giga-seconds ( x⁹ )	93.400'000	%	β+	197.335	keV	¹⁵⁸Gd	¹⁵⁸Tb > [ 93.4 % , β+ , 197.335 keV ] > ¹⁵⁸Gd	β-	934.890	keV	¹⁵⁸Dy	¹⁵⁸Tb > [ , β- , 934.89 keV ] > ¹⁵⁸Dy	83.83.39999999999999	%	¹⁵⁸Gd	?	%	¹⁵⁴Gd
Isotope_065_tb_159_s	Stable	¹⁵⁹Tb	Boson	65	p	94	n	3/2	1	158.925'346'757'0	u	100.000'000	%	158.925'346'757'0	-69.539'048'000'0	MeV	-69.539'048'000'0	MeV	2.014'000'000'0	nm	1.432'000'000'0	b	-
Isotope_065_tb_160_u	Unstable	¹⁶⁰Tb	Fermion	65	p	95	n	3	-1	159.927'167'606'0	u	~ 0	%	~ 0	-67.842'938'000'0	MeV	8.177'507'000'0	MeV	1.790'000'000'0	nm	3.850'000'000'0	b	1.98E-1	year	6.250	mega-seconds ( x⁶ )	100.000'000	%	β-	1,835.130	keV	¹⁶⁰Dy	¹⁶⁰Tb > [ 100 % , β- , 1,835.13 keV ] > ¹⁶⁰Dy						100.000'000	%	¹⁶⁰Dy
Isotope_065_tb_161_u	Unstable	¹⁶¹Tb	Boson	65	p	96	n	3/2	1	160.927'569'919'0	u	~ 0	%	~ 0	-67.468'186'000'0	MeV	8.174'520'000'0	MeV	2.200'000'000'0	nm	1.200'000'000'0	b	1.89E-2	year	596.696	kilo-seconds ( x³ )	100.000'000	%	β-	592.950	keV	¹⁶¹Dy	¹⁶¹Tb > [ 100 % , β- , 592.95 keV ] > ¹⁶¹Dy						100.000'000	%	¹⁶¹Dy
Isotope_065_tb_162_u	Unstable	¹⁶²Tb	Fermion	65	p	97	n	1	-1	161.929'488'234'0	u	~ 0	%	~ 0	-65.681'287'000'0	MeV	8.162'853'000'0	MeV	-		-		1.46E-5	year	460.020	seconds ( x⁰ )	100.000'000	%	β-	2,505.500	keV	¹⁶²Dy	¹⁶²Tb > [ 100 % , β- , 2,505.5 keV ] > ¹⁶²Dy						100.000'000	%	¹⁶²Dy
Isotope_065_tb_163_u	Unstable	¹⁶³Tb	Boson	65	p	98	n	3/2	1	162.930'647'536'0	u	~ 0	%	~ 0	-64.601'404'000'0	MeV	8.155'666'000'0	MeV	-		-		3.71E-5	year	1.170	kilo-seconds ( x³ )	100.000'000	%	β-	1,785.090	keV	¹⁶³Dy	¹⁶³Tb > [ 100 % , β- , 1,785.09 keV ] > ¹⁶³Dy						100.000'000	%	¹⁶³Dy
Isotope_065_tb_164_u	Unstable	¹⁶⁴Tb	Fermion	65	p	99	n	5	1	163.933'350'838'0	u	~ 0	%	~ 0	-62.083'290'000'0	MeV	8.139'797'000'0	MeV	-		-		5.70E-6	year	180.000	seconds ( x⁰ )	100.000'000	%	β-	3,890.000	keV	¹⁶⁴Dy	¹⁶⁴Tb > [ 100 % , β- , 3,890.0 keV ] > ¹⁶⁴Dy						100.000'000	%	¹⁶⁴Dy
Isotope_065_tb_165_u	Unstable	¹⁶⁵Tb	Boson	65	p	100	n	3/2	1	164.934'880'000'0	u	~ 0	%	~ 0	-60.659'000'000'0	MeV	8.131'000'000'0	MeV	-		-		4.03E-6	year	127.020	seconds ( x⁰ )	100.000'000	%	β-	2,959.000	keV	¹⁶⁵Dy	¹⁶⁵Tb > [ 100 % , β- , 2,959.0 keV ] > ¹⁶⁵Dy						100.000'000	%	¹⁶⁵Ho
Isotope_065_tb_166_u	Unstable	¹⁶⁶Tb	Fermion	65	p	101	n	?	0	165.937'991'959'0	u	~ 0	%	~ 0	-57.760'118'000'0	MeV	8.112'929'000'0	MeV	-		-		8.11E-7	year	25.600	seconds ( x⁰ )	100.000'000	%	β-	4,830.000	keV	¹⁶⁶Dy	¹⁶⁶Tb > [ 100 % , β- , 4,830.0 keV ] > ¹⁶⁶Dy						100.000'000	%	¹⁶⁶Er
Isotope_065_tb_167_u	Unstable	¹⁶⁷Tb	Boson	65	p	102	n	3/2	1	166.940'050'000'0	u	~ 0	%	~ 0	-55.843'000'000'0	MeV	8.101'000'000'0	MeV	-		-		6.02E-7	year	19.000	seconds ( x⁰ )	100.000'000	%	β-	4,093.000	keV	¹⁶⁷Dy	¹⁶⁷Tb > [ 100 % , β- , 4,093.0 keV ] > ¹⁶⁷Dy						100.000'000	%	¹⁶⁷Er
Isotope_065_tb_168_u	Unstable	¹⁶⁸Tb	Fermion	65	p	103	n	4	-1	167.943'640'000'0	u	~ 0	%	~ 0	-52.499'000'000'0	MeV	8.081'8.081'8.081'8.081	MeV	-		-		2.60E-7	year	8.200	seconds ( x⁰ )	100.000'000	%	β-	6,065.000	keV	¹⁶⁸Dy	¹⁶⁸Tb > [ 100 % , β- , 6,065.0 keV ] > ¹⁶⁸Dy						100.000'000	%	¹⁶⁸Er
Isotope_065_tb_169_u	Unstable	¹⁶⁹Tb	Boson	65	p	104	n	3/2	1	168.946'220'000'0	u	~ 0	%	~ 0	-50.096'000'000'0	MeV	8.067'000'000'0	MeV	-		-		6.34E-8	year	2.000	seconds ( x⁰ )	?	%	β-	5,507.000	keV	¹⁶⁹Dy	¹⁶⁹Tb > [ ? % , β- , 5,507.0 keV ] > ¹⁶⁹Dy						?	%	¹⁶⁹Tm
Isotope_065_tb_170_u	Unstable	¹⁷⁰Tb	Fermion	65	p	105	n	?	0	169.950'250'000'0	u	~ 0	%	~ 0	-46.342'000'000'0	MeV	8.045'000'000'0	MeV	-		-		9.51E-8	year	3.000	seconds ( x⁰ )	?	%	β-	7,322.000	keV	¹⁷⁰Dy	¹⁷⁰Tb > [ ? % , β- , 7,322.0 keV ] > ¹⁷⁰Dy						?	%	¹⁶⁶Er	?	%	¹⁷⁰Yb
Isotope_065_tb_171_u	Unstable	¹⁷¹Tb	Boson	65	p	106	n	3/2	1	170.953'300'000'0	u	~ 0	%	~ 0	-43.501'000'000'0	MeV	8.028'000'000'0	MeV	-		-		1.58E-8	year	500.000	milli-seconds ( x⁻³ )	?	%	β-	6,614.000	keV	¹⁷¹Dy	¹⁷¹Tb > [ ? % , β- , 6,614.0 keV ] > ¹⁷¹Dy						?	%	¹⁷¹Yb

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