Promeetium (Pm)

chemical element with the atomic number of 61

Atomic Number	61
Atomic Weight	144.91276
massiarv	126

Group
Period	6
Block	f

prooton	61 p⁺
neutron	65 n⁰
elektron	61 e^-

Animated Bohri aatomiteooria of Pm (Promeetium)

Füüsikalised Omadused

Aatomiraadius	185 pm 283 pm
molaarruumala
Covalent Radius	173 pm 135 pm 199 pm
Metallic Radius
ionic radius	97 pm 109,3 pm 114,4 pm
Crystal Radius	111 pm 123,3 pm 128,4 pm
Van der Waals radius	238 pm 272 pm 354,7 pm
density	7,26 g/cm³

Keemilised Omadused

{ERROR}

energia

proton affinity
Elektronafiinsus
ionization energy	5,582 eV/particle 10,9 eV/particle 22 eV/particle 41 eV/particle 61,69 eV/particle 85 eV/particle 101 eV/particle 116 eV/particle 138 eV/particle 155 eV/particle 174 eV/particle 202 eV/particle 229 eV/particle 200 eV/particle 269 eV/particle 430 eV/particle 462 eV/particle 497 eV/particle 534 eV/particle 569 eV/particle 609 eV/particle 651 eV/particle 689 eV/particle 730 eV/particle 767 eV/particle 916 eV/particle 956 eV/particle 998 eV/particle 1 040 eV/particle 1 113 eV/particle 1 158 eV/particle 1 261 eV/particle 1 308,7 eV/particle 2 251 eV/particle 2 344 eV/particle 2 443 eV/particle 2 549 eV/particle 2 652 eV/particle 2 755 eV/particle 2 892 eV/particle 2 997 eV/particle 3 110 eV/particle 3 219 eV/particle 3 519 eV/particle 3 613 eV/particle 3 718 eV/particle 3 816 eV/particle 4 056 eV/particle 4 166 eV/particle 4 371 eV/particle 4 476 eV/particle 10 115 eV/particle 10 378 eV/particle 10 671 eV/particle 10 942 eV/particle 11 819 eV/particle 12 136 eV/particle 12 532 eV/particle 12 797,26 eV/particle 52 144,29 eV/particle 53 346,1 eV/particle

aurustumissoojus
sulamissoojus
standard enthalpy of formation
elektron

elektronkiht	2, 8, 18, 23, 8, 2

valentselektron	2 ⓘ

elektronkonfiguratsioon	[Xe] 4f⁵ 6s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 4f⁵ 6s²

oksüdatsiooniaste	2, 3
elektronegatiivsus	0.1810032
Electrophilicity Index
fundamental state of matter

phase of matter
gaseous state of matter
Boiling Point
Melting Point	1 315,15 K
critical pressure
critical temperature
kolmikpunkt
Välimus
värvus	Black #ff1493 #a3ffc7 #a3ffc7
Välimus	metallic
Murdumisnäitaja
thermodynamic material property
Thermal Conductivity	17,9 W/(m K)
soojuspaisumine	0,000011 1/K
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type	Conductor
Elektrijuhtivus	1,3 MS/m
Eritakistus	0,00000075 Ω*m
Ülijuhtivus
Magnetism
type
Magnetiline vastuvõtlikkus (Mass)
Magnetiline vastuvõtlikkus (Molar)
Magnetiline vastuvõtlikkus (Volume)
magnetic ordering
Curie punkt
Néel temperature
struktuur
Crystal Structure	{ERROR}
lattice constant
Lattice Angles
mechanical property
kõvadus
Ruumpaisumismoodul	33 GPa
Nihkeelastsusmoodul	18 GPa
Normaalelastsusmoodul	46 GPa
Poissoni tegur	0,28
heli kiirus
Klassifitseerimine
Category	Actinides, Lanthanides
CAS Group
IUPAC Group
Glawe Number	28
Mendeleev Number	21
Pettifor Number	29
Geochemical Class	rare earth & related
Goldschmidt classification	litophile

teine

Gas Basicity
polarizability	200 ± 20 a₀
C6 Dispersion Coefficient	3 340 a₀
allotrope
Neutron cross section	8 400
Neutron Mass Absorption
Kvantarv	6H5/2
space group	()

Isotopes of Promethium

Stable Isotopes	0
Unstable Isotopes	40
Natural Isotopes	0

¹²⁶Pm

massiarv	126
neutron number	65
Relative Atomic Mass	125,957327 ± 0,000537 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg
spinn
nuclear quadrupole moment
avastamise aeg
parity

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

¹²⁷Pm

massiarv	127
neutron number	66
Relative Atomic Mass	126,951358 ± 0,000429 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg
spinn	3/2
nuclear quadrupole moment
avastamise aeg
parity	+

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

¹²⁸Pm

massiarv	128
neutron number	67
Relative Atomic Mass	127,948234 ± 0,000322 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	1 ± 0,3 s
spinn	4
nuclear quadrupole moment
avastamise aeg	1999
parity	+

decay mode	Intensiivsus
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)
p (proton emission)	0%

¹²⁹Pm

massiarv	129
neutron number	68
Relative Atomic Mass	128,942909 ± 0,000322 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	2,4 ± 0,9 s
spinn	5/2
nuclear quadrupole moment
avastamise aeg	2004
parity	+

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

¹³⁰Pm

massiarv	130
neutron number	69
Relative Atomic Mass	129,940451 ± 0,000215 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	2,6 ± 0,2 s
spinn	5
nuclear quadrupole moment
avastamise aeg	1985
parity	+

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

¹³¹Pm

massiarv	131
neutron number	70
Relative Atomic Mass	130,935834 ± 0,000215 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	6,3 ± 0,8 s
spinn	11/2
nuclear quadrupole moment
avastamise aeg	1998
parity	-

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

¹³²Pm

massiarv	132
neutron number	71
Relative Atomic Mass	131,93384 ± 0,00016 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	6,2 ± 0,6 s
spinn	3
nuclear quadrupole moment
avastamise aeg	1977
parity	+

decay mode	Intensiivsus
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	5%

¹³³Pm

massiarv	133
neutron number	72
Relative Atomic Mass	132,929782 ± 0,000054 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	13,5 ± 2,1 s
spinn	3/2
nuclear quadrupole moment
avastamise aeg	1977
parity	+

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

¹³⁴Pm

massiarv	134
neutron number	73
Relative Atomic Mass	133,928326 ± 0,000045 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	22 ± 1 s
spinn	5
nuclear quadrupole moment
avastamise aeg	1977
parity	+

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

¹³⁵Pm

massiarv	135
neutron number	74
Relative Atomic Mass	134,924785 ± 0,000089 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	49 ± 3 s
spinn	3/2
nuclear quadrupole moment
avastamise aeg	1975
parity	+

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

¹³⁶Pm

massiarv	136
neutron number	75
Relative Atomic Mass	135,923595949 ± 0,000074152 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	107 ± 6 s
spinn	7
nuclear quadrupole moment
avastamise aeg	1988
parity	+

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

¹³⁷Pm

massiarv	137
neutron number	76
Relative Atomic Mass	136,920479519 ± 0,000014 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg
spinn	5/2
nuclear quadrupole moment
avastamise aeg	1975
parity	-

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

¹³⁸Pm

massiarv	138
neutron number	77
Relative Atomic Mass	137,919576119 ± 0,000012456 Da
g-factor	1,0666666666667 ± 0,3
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	3,24 ± 0,05 m
spinn	3
nuclear quadrupole moment
avastamise aeg	1973
parity	-

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

¹³⁹Pm

massiarv	139
neutron number	78
Relative Atomic Mass	138,916799228 ± 0,000014587 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	4,15 ± 0,05 m
spinn	5/2
nuclear quadrupole moment
avastamise aeg	1967
parity

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

¹⁴⁰Pm

massiarv	140
neutron number	79
Relative Atomic Mass	139,916035918 ± 0,000026001 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	9,2 ± 0,2 s
spinn	1
nuclear quadrupole moment
avastamise aeg	1966
parity	+

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

¹⁴¹Pm

massiarv	141
neutron number	80
Relative Atomic Mass	140,913555081 ± 0,000015 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	20,9 ± 0,05 m
spinn	5/2
nuclear quadrupole moment
avastamise aeg	1952
parity	+

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

¹⁴²Pm

massiarv	142
neutron number	81
Relative Atomic Mass	141,912890982 ± 0,00002533 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	40,5 ± 0,5 s
spinn	1
nuclear quadrupole moment
avastamise aeg	1959
parity	+

decay mode	Intensiivsus
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
e⁺ (positron emission)	77.1%
ϵ (electron capture)	22.9%

¹⁴³Pm

massiarv	143
neutron number	82
Relative Atomic Mass	142,910938068 ± 0,00000316 Da
g-factor	1,52 ± 0,2
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	265 ± 7 d
spinn	5/2
nuclear quadrupole moment
avastamise aeg	1952
parity	+

decay mode	Intensiivsus
ϵ (electron capture)	100%
e⁺ (positron emission)	5.7%

¹⁴⁴Pm

massiarv	144
neutron number	83
Relative Atomic Mass	143,912596208 ± 0,000003126 Da
g-factor	0,338 ± 0,028
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	363 ± 14 d
spinn	5
nuclear quadrupole moment
avastamise aeg	1952
parity	-

decay mode	Intensiivsus
ϵ (electron capture)	100%
e⁺ (positron emission)	8%

¹⁴⁵Pm

massiarv	145
neutron number	84
Relative Atomic Mass	144,912755748 ± 0,000003011 Da
g-factor	1,52 ± 0,064
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	17,7 ± 0,4 y
spinn	5/2
nuclear quadrupole moment	0,23 ± 0,08
avastamise aeg	1951
parity	+

decay mode	Intensiivsus
ϵ (electron capture)	100%
α (α emission)	2.8%

¹⁴⁶Pm

massiarv	146
neutron number	85
Relative Atomic Mass	145,91470224 ± 0,000004589 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	5,53 ± 0,05 y
spinn	3
nuclear quadrupole moment
avastamise aeg	1960
parity	-

decay mode	Intensiivsus
ϵ (electron capture)	66%
β⁻ (β⁻ decay)	34%

¹⁴⁷Pm

massiarv	147
neutron number	86
Relative Atomic Mass	146,915144944 ± 0,000001382 Da
g-factor	0,73714285714286 ± 0,02
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	2,6234 ± 0,0002 y
spinn	7/2
nuclear quadrupole moment	0,74 ± 0,2
avastamise aeg	1947
parity	+

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

¹⁴⁸Pm

massiarv	148
neutron number	87
Relative Atomic Mass	147,917481091 ± 0,000006108 Da
g-factor	2,1 ± 0,2
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	5,368 ± 0,007 d
spinn	1
nuclear quadrupole moment	0,2 ± 0,2
avastamise aeg	1947
parity	-

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

¹⁴⁹Pm

massiarv	149
neutron number	88
Relative Atomic Mass	148,918341507 ± 0,000002344 Da
g-factor	0,94285714285714 ± 0,14285714285714
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	53,08 ± 0,05 h
spinn	7/2
nuclear quadrupole moment
avastamise aeg	1947
parity	+

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

¹⁵⁰Pm

massiarv	150
neutron number	89
Relative Atomic Mass	149,920990014 ± 0,000021504 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	2,698 ± 0,015 h
spinn	1
nuclear quadrupole moment
avastamise aeg	1952
parity	-

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

¹⁵¹Pm

massiarv	151
neutron number	90
Relative Atomic Mass	150,921216613 ± 0,000004949 Da
g-factor	0,72 ± 0,08
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	28,4 ± 0,04 h
spinn	5/2
nuclear quadrupole moment	2,2 ± 0,9
avastamise aeg	1952
parity	+

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

¹⁵²Pm

massiarv	152
neutron number	91
Relative Atomic Mass	151,923505185 ± 0,000027809 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	4,12 ± 0,08 m
spinn	1
nuclear quadrupole moment
avastamise aeg	1958
parity	+

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

¹⁵³Pm

massiarv	153
neutron number	92
Relative Atomic Mass	152,924156252 ± 0,000009729 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	5,25 ± 0,02 m
spinn	5/2
nuclear quadrupole moment
avastamise aeg	1962
parity	-

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

¹⁵⁴Pm

massiarv	154
neutron number	93
Relative Atomic Mass	153,926712791 ± 0,000026861 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	2,68 ± 0,07 m
spinn	4
nuclear quadrupole moment
avastamise aeg	1958
parity	+

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

¹⁵⁵Pm

massiarv	155
neutron number	94
Relative Atomic Mass	154,928136951 ± 0,000005065 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	41,5 ± 0,2 s
spinn	5/2
nuclear quadrupole moment
avastamise aeg	1982
parity	-

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

¹⁵⁶Pm

massiarv	156
neutron number	95
Relative Atomic Mass	155,931114059 ± 0,000001275 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	27,4 ± 0,5 s
spinn	4
nuclear quadrupole moment
avastamise aeg	1986
parity	+

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

¹⁵⁷Pm

massiarv	157
neutron number	96
Relative Atomic Mass	156,933121298 ± 0,000007521 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	10,56 ± 0,1 s
spinn	5/2
nuclear quadrupole moment
avastamise aeg	1987
parity	-

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

¹⁵⁸Pm

massiarv	158
neutron number	97
Relative Atomic Mass	157,936546948 ± 0,000000953 Da
g-factor	0
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	4,8 ± 0,5 s
spinn	0
nuclear quadrupole moment	0
avastamise aeg	1987
parity	+

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

¹⁵⁹Pm

massiarv	159
neutron number	98
Relative Atomic Mass	158,939286409 ± 0,000010777 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	1,49 ± 0,13 s
spinn	5/2
nuclear quadrupole moment
avastamise aeg	1998
parity	-

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

¹⁶⁰Pm

massiarv	160
neutron number	99
Relative Atomic Mass	159,943215272 ± 0,0000022 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	725 ± 57 ms
spinn	6
nuclear quadrupole moment
avastamise aeg	2012
parity	-

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

¹⁶¹Pm

massiarv	161
neutron number	100
Relative Atomic Mass	160,946229837 ± 0,0000097 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	1,05 ± 0,15 s
spinn	5/2
nuclear quadrupole moment
avastamise aeg	2012
parity	-

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

¹⁶²Pm

massiarv	162
neutron number	101
Relative Atomic Mass	161,950574 ± 0,000322 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	630 ± 180 ms
spinn	2
nuclear quadrupole moment
avastamise aeg	2012
parity	+

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

¹⁶³Pm

massiarv	163
neutron number	102
Relative Atomic Mass	162,953881 ± 0,000429 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg	255 ± 25 ms
spinn	5/2
nuclear quadrupole moment
avastamise aeg	2012
parity	-

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

¹⁶⁴Pm

massiarv	164
neutron number	103
Relative Atomic Mass	163,958819 ± 0,000429 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg
spinn	5
nuclear quadrupole moment
avastamise aeg	2018
parity	-

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

¹⁶⁵Pm

massiarv	165
neutron number	104
Relative Atomic Mass	164,96278 ± 0,000537 Da
g-factor
natural abundance
radioaktiivsus	☢️ radioactive element
Poolestusaeg
spinn	5/2
nuclear quadrupole moment
avastamise aeg	2018
parity	-

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

ajalugu

leiutaja või avastaja	J.A. Marinsky, L.E. Glendenin, C.D. Coryell
location of discovery	United States
avastamise aeg	1945
etümoloogia	Named for the Greek god, Prometheus.
pronunciation	pro-MEE-thi-em (inglise)

allikas

Abundance
Abundance in Earth's crust
natural abundance (ookean)
natural abundance (Inimkeha)	0 %
natural abundance (meteoorkeha)	0 %
natural abundance (Päike)	0 %
Abundance in Universe	0 %

Nuclear Screening Constants

1	s	1.2042
2	p	4.2562
2	s	16.0296
3	d	13.9018
3	p	19.4461
3	s	19.8154
4	d	33.26
4	f	37.866
4	p	30.3768
4	s	29.3604
5	p	44.586
5	s	42.1645
6	s	51.6046

Promeetium on ChemicalAid

Promeetium (Pm)

Füüsikalised Omadused

Keemilised Omadused

teine

Isotopes of Promethium

126Pm

127Pm

128Pm

129Pm

130Pm

131Pm

132Pm

133Pm

134Pm

135Pm

136Pm

137Pm

138Pm

139Pm

140Pm

141Pm

142Pm

143Pm

144Pm

145Pm

146Pm

147Pm

148Pm

149Pm

150Pm

151Pm

152Pm

153Pm

154Pm

155Pm

156Pm

157Pm

158Pm

159Pm

160Pm

161Pm

162Pm

163Pm

164Pm

165Pm

ajalugu

allikas

Nuclear Screening Constants

¹²⁶Pm

¹²⁷Pm

¹²⁸Pm

¹²⁹Pm

¹³⁰Pm

¹³¹Pm

¹³²Pm

¹³³Pm

¹³⁴Pm

¹³⁵Pm

¹³⁶Pm

¹³⁷Pm

¹³⁸Pm

¹³⁹Pm

¹⁴⁰Pm

¹⁴¹Pm

¹⁴²Pm

¹⁴³Pm

¹⁴⁴Pm

¹⁴⁵Pm

¹⁴⁶Pm

¹⁴⁷Pm

¹⁴⁸Pm

¹⁴⁹Pm

¹⁵⁰Pm

¹⁵¹Pm

¹⁵²Pm

¹⁵³Pm

¹⁵⁴Pm

¹⁵⁵Pm

¹⁵⁶Pm

¹⁵⁷Pm

¹⁵⁸Pm

¹⁵⁹Pm

¹⁶⁰Pm

¹⁶¹Pm

¹⁶²Pm

¹⁶³Pm

¹⁶⁴Pm

¹⁶⁵Pm