Thulyum (Tm)

chemical element with the atomic number of 69

Atomic Number	69
Atomic Weight	168.93422
mass number	169

Group
Period	6
Block	f

proton	69 p⁺
neutron	100 n⁰
electron	69 e^-

Physical Property

Atomic Radius	175 pm 271 pm
molar volume	18.1 cm³/mol
covalent radius	164 pm 131 pm 190 pm
Metallic Radius
ionic radius	103 pm 109 pm 88 pm 99.4 pm 105.2 pm
Crystal Radius	117 pm 123 pm 102 pm 113.4 pm 119.2 pm
Van der Waals radius	227 pm 267 pm 337.4 pm
dosedh	9.321 g/cm³ 8,560 kg/m³

Chemical Property

nerth

proton affinity
electron affinity	1.029 eV/particle
ionization energy	6.18431 eV/particle 12.05 eV/particle 23.7 eV/particle 42.7 eV/particle 65.43 eV/particle 98 eV/particle 116 eV/particle 133 eV/particle 160 eV/particle 180 eV/particle 205 eV/particle 239 eV/particle 274 eV/particle 295 eV/particle 317 eV/particle 352 eV/particle 387 eV/particle 424 eV/particle 460 eV/particle 500 eV/particle 530 eV/particle 570 eV/particle 603 eV/particle 825 eV/particle 866 eV/particle 911 eV/particle 958 eV/particle 1,004 eV/particle 1,050 eV/particle 1,110 eV/particle 1,157 eV/particle 1,207 eV/particle 1,255 eV/particle 1,442 eV/particle 1,490 eV/particle 1,542 eV/particle 1,591 eV/particle 1,706 eV/particle 1,761 eV/particle 1,889 eV/particle 1,945.2 eV/particle 3,300 eV/particle 3,409 eV/particle 3,528 eV/particle 3,653 eV/particle 3,775 eV/particle 3,895 eV/particle 4,075 eV/particle 4,199 eV/particle 4,335 eV/particle 4,461 eV/particle 4,812 eV/particle 4,922 eV/particle 5,044 eV/particle 5,157 eV/particle 5,527 eV/particle 5,656 eV/particle 5,901 eV/particle 6,023 eV/particle 13,347 eV/particle 13,651 eV/particle 13,988 eV/particle 14,300 eV/particle 15,663 eV/particle 16,036 eV/particle 16,500 eV/particle 16,814.34 eV/particle 67,965.26 eV/particle 69,387.34 eV/particle

enthalpy of vaporization	232 kJ/mol
enthalpy of fusion
standard enthalpy of formation	232.2 kJ/mol
electron

electron shell	2, 8, 18, 31, 8, 2

valence electron	2 ⓘ

aray an elektrons	[Xe] 4f¹³ 6s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 4f¹³ 6s²

oxidation number	0, 1, 2, 3
electronegativity	0.2167244 1.25
Electrophilicity Index	1.2616079623752015 eV/particle
fundamental state of matter

phase of matter	Solid
gaseous state of matter
Boiling Point	2,223.15 K
Melting Point	1,818.15 K
critical pressure
critical temperature
triple point
appearance
liw	Silver #ff1493 #00d452 #00d452
appearance	silvery gray
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion	0.0000133 1/K
molar heat capacity	27.03 J/(mol K)
Specific Heat Capacity	0.16 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
electrical conductivity	1.4 MS/m
electrical resistivity	0.0000007 Ω*m
superconductivity
magnetism
type	paramagnetic
magnetic susceptibility (Mass)	0.00000199 m³/Kg
magnetic susceptibility (Molar)	0.000000336179 m³/mol
magnetic susceptibility (Volume)	0.0185488
magnetic ordering
Curie temperature	25 K
Néel temperature	56 K
kesweyth
Crystal Structure	Simple Hexagonal (HEX)
lattice constant	3.54 Å
Lattice Angles	π/2, π/2, 2 π/3
mechanical property
hardness	471 MPa 520 MPa
bulk modulus	45 GPa
shear modulus	31 GPa
Young's modulus	74 GPa
Poisson's ratio	0.21
speed of sound
classification
Category	Lanthanides, Lanthanides
CAS Group
IUPAC Group
Glawe Number	20
Mendeleev Number	37
Pettifor Number	22
Geochemical Class	rare earth & related
Goldschmidt classification	litophile

other

Gas Basicity
polarizability	144 ± 15 a₀
C6 Dispersion Coefficient	2,020 a₀
allotrope
Neutron cross section	105
Neutron Mass Absorption	0.025
quantum number	2F7/2
space group	194 (P63/mmc)

Isotopes of Thulium

Stable Isotopes	1
Unstable Isotopes	38
Natural Isotopes	1

¹⁴⁴Tm

mass number	144
neutron number	75
relative atomic mass	143.976211 ± 0.000429 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	2.3 ± 0.9 us
spin	10
nuclear quadrupole moment
dydhyas diskudhans	2005
parity	+

decay mode	intensity
p (proton emission)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

¹⁴⁵Tm

mass number	145
neutron number	76
relative atomic mass	144.970389 ± 0.00021 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	3.17 ± 0.2 us
spin	11/2
nuclear quadrupole moment
dydhyas diskudhans	1998
parity	-

decay mode	intensity
p (proton emission)	100%

¹⁴⁶Tm

mass number	146
neutron number	77
relative atomic mass	145.966661 ± 0.000215 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	155 ± 20 ms
spin	1
nuclear quadrupole moment
dydhyas diskudhans	1993
parity	+

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

¹⁴⁷Tm

mass number	147
neutron number	78
relative atomic mass	146.961379887 ± 0.000007341 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	580 ± 30 ms
spin	11/2
nuclear quadrupole moment
dydhyas diskudhans	1982
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	85%
p (proton emission)	15%

¹⁴⁸Tm

mass number	148
neutron number	79
relative atomic mass	147.958384026 ± 0.000011 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	700 ± 200 ms
spin	10
nuclear quadrupole moment
dydhyas diskudhans	1982
parity	+

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

¹⁴⁹Tm

mass number	149
neutron number	80
relative atomic mass	148.952828 ± 0.000215 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	900 ± 200 ms
spin	11/2
nuclear quadrupole moment
dydhyas diskudhans	1987
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	0.26%

¹⁵⁰Tm

mass number	150
neutron number	81
relative atomic mass	149.95009 ± 0.00021 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life
spin	1
nuclear quadrupole moment
dydhyas diskudhans	1982
parity	+

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

¹⁵¹Tm

mass number	151
neutron number	82
relative atomic mass	150.945494433 ± 0.000020799 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	4.17 ± 0.11 s
spin	11/2
nuclear quadrupole moment
dydhyas diskudhans	1982
parity	-

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

¹⁵²Tm

mass number	152
neutron number	83
relative atomic mass	151.944476 ± 0.000058 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	8 ± 1 s
spin	2
nuclear quadrupole moment
dydhyas diskudhans	1980
parity

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

¹⁵³Tm

mass number	153
neutron number	84
relative atomic mass	152.942058023 ± 0.00001286 Da
g-factor	1.26 ± 0.02
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	1.48 ± 0.01 s
spin	11/2
nuclear quadrupole moment	0.5 ± 1
dydhyas diskudhans	1964
parity	-

decay mode	intensity
α (α emission)	91%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	9%

¹⁵⁴Tm

mass number	154
neutron number	85
relative atomic mass	153.941570062 ± 0.000015471 Da
g-factor	-0.57 ± 0.01
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	8.1 ± 0.3 s
spin	2
nuclear quadrupole moment	0.4 ± 0.9
dydhyas diskudhans	1964
parity

decay mode	intensity
α (α emission)	54%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	46%

¹⁵⁵Tm

mass number	155
neutron number	86
relative atomic mass	154.939209576 ± 0.000010651 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	21.6 ± 0.2 s
spin	11/2
nuclear quadrupole moment
dydhyas diskudhans	1971
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	99.17%
α (α emission)	0.83%

¹⁵⁶Tm

mass number	156
neutron number	87
relative atomic mass	155.938985746 ± 0.000015328 Da
g-factor	0.2 ± 0.015
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	83.8 ± 1.8 s
spin	2
nuclear quadrupole moment	-0.48 ± 0.11
dydhyas diskudhans	1971
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
α (α emission)	0.064%

¹⁵⁷Tm

mass number	157
neutron number	88
relative atomic mass	156.936973 ± 0.00003 Da
g-factor	0.952 ± 0.03
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	3.63 ± 0.09 m
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	1974
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
α (α emission)	7.5%

¹⁵⁸Tm

mass number	158
neutron number	89
relative atomic mass	157.936979525 ± 0.000027074 Da
g-factor	0.02 ± 0.01
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	3.98 ± 0.06 m
spin	2
nuclear quadrupole moment	0.74 ± 0.11
dydhyas diskudhans	1970
parity	-

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

¹⁵⁹Tm

mass number	159
neutron number	90
relative atomic mass	158.934975 ± 0.00003 Da
g-factor	1.368 ± 0.012
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	9.13 ± 0.16 m
spin	5/2
nuclear quadrupole moment	1.93 ± 0.07
dydhyas diskudhans	1971
parity	+

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

¹⁶⁰Tm

mass number	160
neutron number	91
relative atomic mass	159.935264177 ± 0.000035089 Da
g-factor	0.16 ± 0.02
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	9.4 ± 0.3 m
spin	1
nuclear quadrupole moment	0.58 ± 0.04
dydhyas diskudhans	1970
parity	-

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

¹⁶¹Tm

mass number	161
neutron number	92
relative atomic mass	160.933549 ± 0.00003 Da
g-factor	0.68571428571429 ± 0.0057142857142857
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	30.2 ± 0.8 m
spin	7/2
nuclear quadrupole moment	2.9 ± 0.07
dydhyas diskudhans	1959
parity	+

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

¹⁶²Tm

mass number	162
neutron number	93
relative atomic mass	161.934001211 ± 0.000027974 Da
g-factor	0.068 ± 0.008
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	21.7 ± 0.19 m
spin	1
nuclear quadrupole moment	0.69 ± 0.03
dydhyas diskudhans	1963
parity	-

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

¹⁶³Tm

mass number	163
neutron number	94
relative atomic mass	162.932658282 ± 0.00000592 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	1.81 ± 0.005 h
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	1959
parity	+

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

¹⁶⁴Tm

mass number	164
neutron number	95
relative atomic mass	163.933538019 ± 0.000026845 Da
g-factor	2.37 ± 0.03
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	2 ± 0.1 m
spin	1
nuclear quadrupole moment	0.71 ± 0.05
dydhyas diskudhans	1960
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
ϵ (electron capture)	61%
e⁺ (positron emission)	39%

¹⁶⁵Tm

mass number	165
neutron number	96
relative atomic mass	164.932441843 ± 0.000001779 Da
g-factor	-0.278 ± 0.004
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	30.06 ± 0.03 h
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	1953
parity	+

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

¹⁶⁶Tm

mass number	166
neutron number	97
relative atomic mass	165.933562136 ± 0.000012401 Da
g-factor	0.0463 ± 0.00035
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	7.7 ± 0.03 h
spin	2
nuclear quadrupole moment	2.14 ± 0.03
dydhyas diskudhans	1948
parity	+

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

¹⁶⁷Tm

mass number	167
neutron number	98
relative atomic mass	166.932857206 ± 0.00000135 Da
g-factor	-0.394 ± 0.004
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	9.25 ± 0.02 d
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	1948
parity	+

decay mode	intensity
ϵ (electron capture)	100%

¹⁶⁸Tm

mass number	168
neutron number	99
relative atomic mass	167.934178457 ± 0.0000018 Da
g-factor	0.075666666666667 ± 0.0036666666666667
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	93.1 ± 0.2 d
spin	3
nuclear quadrupole moment	3.23 ± 0.07
dydhyas diskudhans	1949
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁻ (β⁻ decay)	0.01%

¹⁶⁹Tm

mass number	169
neutron number	100
relative atomic mass	168.934218956 ± 0.000000792 Da
g-factor	-0.462 ± 0.003
natural abundance	100
radioactivity	stable isotope
half-life	Not Radioactive ☢️
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	1934
parity	+

¹⁷⁰Tm

mass number	170
neutron number	101
relative atomic mass	169.935807093 ± 0.000000785 Da
g-factor	0.247 ± 0.004
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	128.6 ± 0.3 d
spin	1
nuclear quadrupole moment	0.74 ± 0.02
dydhyas diskudhans	1936
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	99.869%
ϵ (electron capture)	0.131%

¹⁷¹Tm

mass number	171
neutron number	102
relative atomic mass	170.936435162 ± 0.000001043 Da
g-factor	-0.46 ± 0.008
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	1.92 ± 0.01 y
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	1948
parity	+

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

¹⁷²Tm

mass number	172
neutron number	103
relative atomic mass	171.938406959 ± 0.000005884 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	63.6 ± 0.3 h
spin	2
nuclear quadrupole moment
dydhyas diskudhans	1956
parity	-

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

¹⁷³Tm

mass number	173
neutron number	104
relative atomic mass	172.93960663 ± 0.000004723 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	8.24 ± 0.08 h
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	1961
parity	+

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

¹⁷⁴Tm

mass number	174
neutron number	105
relative atomic mass	173.942174061 ± 0.00004801 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	5.4 ± 0.1 m
spin	4
nuclear quadrupole moment
dydhyas diskudhans	1960
parity	-

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

¹⁷⁵Tm

mass number	175
neutron number	106
relative atomic mass	174.94384231 ± 0.000053677 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	15.2 ± 0.5 m
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	1961
parity

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

¹⁷⁶Tm

mass number	176
neutron number	107
relative atomic mass	175.946997707 ± 0.000107354 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	1.85 ± 0.03 m
spin	4
nuclear quadrupole moment
dydhyas diskudhans	1961
parity	+

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

¹⁷⁷Tm

mass number	177
neutron number	108
relative atomic mass	176.948932 ± 0.000215 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life	95 ± 7 s
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	1989
parity	+

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

¹⁷⁸Tm

mass number	178
neutron number	109
relative atomic mass	177.952506 ± 0.000322 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life
spin	1
nuclear quadrupole moment
dydhyas diskudhans	2008
parity	-

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

¹⁷⁹Tm

mass number	179
neutron number	110
relative atomic mass	178.955018 ± 0.000429 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	2012
parity	+

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

¹⁸⁰Tm

mass number	180
neutron number	111
relative atomic mass	179.959023 ± 0.000429 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life
spin
nuclear quadrupole moment
dydhyas diskudhans	2012
parity

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

¹⁸¹Tm

mass number	181
neutron number	112
relative atomic mass	180.961954 ± 0.000537 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life
spin	1/2
nuclear quadrupole moment	0
dydhyas diskudhans	2012
parity	+

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

¹⁸²Tm

mass number	182
neutron number	113
relative atomic mass	181.966194 ± 0.000537 Da
g-factor
natural abundance
radioactivity	☢️ elven radyoweythresek
half-life
spin
nuclear quadrupole moment
dydhyas diskudhans
parity

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

istori

diskudher po dismyger	Per Theodor Cleve
location of discovery	Sweden
dydhyas diskudhans	1879
Etymologyl	From Thule ancient name of Scandinavia.
pronunciation	THOO-li-em (en)

source

Abundance
Abundance in Earth's crust	0.52 mg/kg
natural abundance (Keynvor)	0.00000017 mg/L
natural abundance (Korf)
natural abundance (meteoroid)	0.0000029 %
natural abundance (Howl)	0.00000002 %
Abundance in Universe	0.00000001 %

Nuclear Screening Constants

1	s	1.3437
2	p	4.3588
2	s	18.0522
3	d	13.6257
3	p	20.5239
3	s	21.0816
4	d	36.056
4	f	40.366
4	p	33.012
4	s	31.8624
5	p	51.272
5	s	48.963
6	s	60.4158

Thulyum on ChemicalAid

Australian Educational Vocabulary ID	scot/3586
CAS Registry Number	7440-30-4
ChEBI ID	33380
ChemSpider ID	22400
DSSTOX compound identifier	DTXCID1047657
DSSTox substance ID	DTXSID8064692
Den Store Danske ID	thulium
ECHA Substance Infocard ID	100.028.309
Encyclopædia Britannica Online ID	science/thulium
Encyclopædia Universalis ID	thulium
Freebase ID	/m/025sk7j
Gran Enciclopèdia Catalana ID	0148772
Great Russian Encyclopedia Online ID	4219056
InChI	InChI=1S/Tm
InChIKey	FRNOGLGSGLTDKL-UHFFFAOYSA-N
KBpedia ID	Thulium
Library of Congress authority ID	sh85135103
MeSH descriptor ID	D013932
NALT ID	60931
NE.se ID	tulium
Namuwiki ID	툴륨
National Library of Israel J9U ID	987007536581905171
OmegaWiki Defined Meaning	367509
OpenAlex ID	C500400820
PubChem CID	23961
RxNorm ID	1311496
Römpp online ID	RD-20-01654
Store norske leksikon ID	thulium
Treccani ID	tulio
UNII	8RKC5ATI4P
USGS Thesaurus ID	1594
WordNet 3.1 Synset ID	14682725-n
honanieth GND	4185369-6

Thulyum (Tm)

Physical Property

Chemical Property

other

Isotopes of Thulium

144Tm

145Tm

146Tm

147Tm

148Tm

149Tm

150Tm

151Tm

152Tm

153Tm

154Tm

155Tm

156Tm

157Tm

158Tm

159Tm

160Tm

161Tm

162Tm

163Tm

164Tm

165Tm

166Tm

167Tm

168Tm

169Tm

170Tm

171Tm

172Tm

173Tm

174Tm

175Tm

176Tm

177Tm

178Tm

179Tm

180Tm

181Tm

182Tm

istori

source

Nuclear Screening Constants

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