HomeTable of NuclidesPraseodymiumIsotopes

Isotopes of Praseodymium

List of known isotopes of the element Praseodymium.

Isotope	t½	%	Spin/parity	Radius	Isotopic mass	Discovery
¹²¹Pr	10 ± ms	syn.	(3/2)	—	1.209·10⁸ ±537 keV/c²	2005
¹²⁴Pr	1.2 ±2 s	syn.	—	—	1.239·10⁸ ±430 keV/c²	1986
¹²⁵Pr	3.3 ±7 s	syn.	—	—	1.249·10⁸ ±322 keV/c²	2002
¹²⁶Pr	3.14 ±22 s	syn.	GE 4	—	1.259·10⁸ ±210 keV/c²	1983
¹²⁷Pr	4.2 ±3 s	syn.	—	—	1.269·10⁸ ±210 keV/c²	1995
¹²⁸Pr	2.84 ±9 s	syn.	4 5 6	—	1.279·10⁸ ±32 keV/c²	1985
¹²⁹Pr	30 ±4 s	syn.	(3/2+)	—	1.289·10⁸ ±32 keV/c²	1977
¹³⁰Pr	40 ±4 s	syn.	(5+)	—	1.299·10⁸ ±69 keV/c²	1977
¹³¹Pr	1.51 ±2 m	syn.	(3/2+)	—	1.309·10⁸ ±50.45 keV/c²	1977
¹³²Pr	1.6 ±3 m	syn.	(2)+	—	1.319·10⁸ ±31 keV/c²	1974
¹³³Pr	6.5 ±3 m	syn.	(3/2+)	—	1.329·10⁸ ±13.41 keV/c²	1970
¹³⁴Pr	17 ±2 m	syn.	2-	—	1.339·10⁸ ±21.81 keV/c²	1967
¹³⁵Pr	24 ±1 m	syn.	3/2(+)	—	1.349·10⁸ ±12.68 keV/c²	1954
¹³⁶Pr	13.1 ±1 m	syn.	2+	—	1.359·10⁸ ±12.29 keV/c²	1968
¹³⁷Pr	1.28 ±3 h	syn.	5/2+	—	1.369·10⁸ ±8.733 keV/c²	1958
¹³⁸Pr	1.45 ±5 m	syn.	1+	—	1.379·10⁸ ±10.74 keV/c²	1951
¹³⁹Pr	4.41 ±4 h	syn.	5/2+	—	1.389·10⁸ ±3.917 keV/c²	1951
¹⁴⁰Pr	3.39 ±1 m	syn.	1+	—	1.399·10⁸ ±6.593 keV/c²	1938
¹⁴¹Pr	stab.	100 %	5/2+	4.891 ±0.005 fm	1.409·10⁸ ±1.607 keV/c²	1924
¹⁴²Pr	19.12 ±4 h	syn.	2-	—	1.419·10⁸ ±1.607 keV/c²	1935
¹⁴³Pr	13.57 ±2 d	syn.	7/2+	—	1.429·10⁸ ±1.949 keV/c²	1948
¹⁴⁴Pr	17.28 ±5 m	syn.	0-	—	1.439·10⁸ ±2.907 keV/c²	1951
¹⁴⁵Pr	5.984 ±10 h	syn.	7/2+	—	1.449·10⁸ ±7.674 keV/c²	1954
¹⁴⁶Pr	24.09 ±10 m	syn.	(2-)	—	1.459·10⁸ ±36.88 keV/c²	1953
¹⁴⁷Pr	13.44 ±10 m	syn.	(3/2+)	—	1.469·10⁸ ±17.02 keV/c²	1964
¹⁴⁸Pr	2.29 ±2 m	syn.	1-	—	1.479·10⁸ ±16.14 keV/c²	1964
¹⁴⁹Pr	2.26 ±8 m	syn.	(5/2+)	—	1.489·10⁸ ±10.6 keV/c²	1964
¹⁵⁰Pr	6.19 ±16 s	syn.	(1-)	—	1.499·10⁸ ±9.677 keV/c²	1970
¹⁵¹Pr	18.9 ±7 s	syn.	(3/2-)	—	1.509·10⁸ ±12.5 keV/c²	1990
¹⁵²Pr	3.57 ±18 s	syn.	(4+)	—	1.519·10⁸ ±19.9 keV/c²	1983
¹⁵³Pr	4.29 ±11 s	syn.	—	—	1.529·10⁸ ±12.75 keV/c²	1987
¹⁵⁴Pr	2.3 ±1 s	syn.	(3+)	—	1.539·10⁸ ±107.3 keV/c²	1988
¹⁵⁵Pr	1.47 ±3 s	syn.	—	—	1.549·10⁸ ±18.46 keV/c²	1992
¹⁵⁶Pr	0.444 ±6 s	syn.	(1+)	—	1.559·10⁸ ±1.1 keV/c²	1992
¹⁵⁷Pr	0.295 ± s	syn.	(3/2-)	—	1.569·10⁸ ±3.4 keV/c²	2017
¹⁵⁸Pr	0.181 ±14 s	syn.	(5-)	—	1.579·10⁸ ±322 keV/c²	2016
¹⁵⁹Pr	0.13 ±4 s	syn.	(3/2-)	—	1.589·10⁸ ±429 keV/c²	2017
¹⁶⁰Pr	0.17 ±14 s	syn.	—	—	1.599·10⁸ ±429 keV/c²	2017
¹⁶¹Pr	stab.	syn.	—	—	1.609·10⁸ ±537 keV/c²	2018

121PrPraseodymium-121

Classification	z: 59; n: 62; m: 121
Half life	10 ± ms
Natural abundance	synthetic nuclide
Spin/parity	(3/2)
Decay modes	proton emission
Discovery	2005
Mass excess	-41,560 ±500 keV
Binding energy	8,033 ±4 keV
Single-particle energy	-889.6 ±10 keV
Q value for electron capture	11,130 ±640.9 keV

Point at nuclide Decay chain of Praseodymium-121

124PrPraseodymium-124

Classification	z: 59; n: 65; m: 124
Half life	1.2 ±2 s
Natural abundance	synthetic nuclide
Decay modes	electron capture + β⁺ decay; electron capture + proton emission
Discovery	1986
Mass excess	-53,160 ±401 keV
Binding energy	8,128 ±3 keV
Single-particle energy	154 ±499 keV
Neutron separation energy	10,990 ±566 keV
Q value for electron capture	11,760 ±499.6 keV
β⁻ decay energy	-8,321 ±641 keV

Point at nuclide Decay chain of Praseodymium-124

125PrPraseodymium-125

Classification	z: 59; n: 66; m: 125
Half life	3.3 ±7 s
Natural abundance	synthetic nuclide
Decay modes	electron capture + β⁺ decay; β⁺ decay + proton emission
Discovery	2002
Mass excess	-58,070 ±300 keV
Binding energy	8,167 ±2 keV
Single-particle energy	443 ±423 keV
Neutron separation energy	12,990 ±500 keV
Q value for electron capture	8,588 ±358.3 keV
β⁻ decay energy	-10,010 ±500 keV
β⁻ decay energy with neutron	-21,320 ±583 keV

Point at nuclide Decay chain of Praseodymium-125

126PrPraseodymium-126

Classification	z: 59; n: 67; m: 126
Half life	3.14 ±22 s
Natural abundance	synthetic nuclide
Spin/parity	GE 4
Decay modes	electron capture + β⁺ decay; electron capture + proton emission
Discovery	1983
Mass excess	-60,330 ±196 keV
Binding energy	8,184 ±2 keV
Single-particle energy	955 ±277 keV
Neutron separation energy	10,320 ±358 keV
Q value for electron capture	10,490 ±197.9 keV
β⁻ decay energy	-6,943 ±358 keV
β⁻ decay energy with neutron	-20,330 ±445 keV

Point at nuclide Decay chain of Praseodymium-126

127PrPraseodymium-127

Classification	z: 59; n: 68; m: 127
Half life	4.2 ±3 s
Natural abundance	synthetic nuclide
Decay modes	electron capture + β⁺ decay
Discovery	1995
Mass excess	-64,550 ±196 keV
Binding energy	8,216 ±2 keV
Single-particle energy	1,012 ±198 keV
Neutron separation energy	12,290 ±277 keV
Q value for electron capture	7,436 ±198.1 keV
β⁻ decay energy	-8,633 ±358 keV
β⁻ decay energy with neutron	-19,240 ±358 keV

Point at nuclide Decay chain of Praseodymium-127

128PrPraseodymium-128

Classification	z: 59; n: 69; m: 128
Half life	2.84 ±9 s
Natural abundance	synthetic nuclide
Spin/parity	4 5 6
Decay modes	electron capture + β⁺ decay
Discovery	1985
Mass excess	-66,340 ±29.8 keV
Binding energy	8,228 ±0.2329 keV
Single-particle energy	1,640 ±41.5 keV
Neutron separation energy	9,859 ±198 keV
Q value for electron capture	9,203 ±40.85 keV
β⁻ decay energy	-5,800 ±202 keV
β⁻ decay energy with neutron	-18,500 ±301 keV

Point at nuclide Decay chain of Praseodymium-128

129PrPraseodymium-129

Classification	z: 59; n: 70; m: 129
Half life	30 ±4 s
Natural abundance	synthetic nuclide
Spin/parity	(3/2+)
Decay modes	electron capture + β⁺ decay
Discovery	1977
Mass excess	-69,780 ±29.8 keV
Binding energy	8,254 ±0.2311 keV
Single-particle energy	1,528 ±40.85 keV
Neutron separation energy	11,510 ±42.15 keV
Q value for electron capture	6,513 ±40.85 keV
β⁻ decay energy	-7,399 ±204 keV
β⁻ decay energy with neutron	-17,320 ±202 keV

Point at nuclide Decay chain of Praseodymium-129

130PrPraseodymium-130

Classification	z: 59; n: 71; m: 130
Half life	40 ±4 s
Natural abundance	synthetic nuclide
Spin/parity	(5+)
Decay modes	electron capture + β⁺ decay
Discovery	1977
Mass excess	-71,180 ±64.27 keV
Binding energy	8,263 ±0.4944 keV
Single-particle energy	2,176 ±70.08 keV
Neutron separation energy	9,473 ±70.84 keV
Q value for electron capture	8,247 ±70.08 keV
β⁻ decay energy	-4,580 ±70.08 keV
β⁻ decay energy with neutron	-16,880 ±212 keV

Point at nuclide Decay chain of Praseodymium-130

131PrPraseodymium-131

Classification	z: 59; n: 72; m: 131
Half life	1.51 ±2 m
Natural abundance	synthetic nuclide
Spin/parity	(3/2+)
Decay modes	electron capture + β⁺ decay
Discovery	1977
Mass excess	-74,310 ±46.99 keV
Binding energy	8,286 ±0.3587 keV
Single-particle energy	2,166 ±54.67 keV
Neutron separation energy	11,190 ±79.62 keV
Q value for electron capture	5,407 ±57.31 keV
β⁻ decay energy	-6,533 ±53.08 keV
β⁻ decay energy with neutron	-15,780 ±54.67 keV

Point at nuclide Decay chain of Praseodymium-131

132PrPraseodymium-132

Classification	z: 59; n: 73; m: 132
Half life	1.6 ±3 m
Natural abundance	synthetic nuclide
Spin/parity	(2)+
Decay modes	electron capture + β⁺ decay
Discovery	1974
Mass excess	-75,230 ±28.87 keV
Binding energy	8,291 ±0.2188 keV
Single-particle energy	2,807 ±43.7 keV
Neutron separation energy	8,998 ±55.15 keV
Q value for electron capture	7,241 ±35.35 keV
β⁻ decay energy	-3,802 ±37.67 keV
β⁻ decay energy with neutron	-15,540 ±39.88 keV

Point at nuclide Decay chain of Praseodymium-132

133PrPraseodymium-133

Classification	z: 59; n: 74; m: 133
Half life	6.5 ±3 m
Natural abundance	synthetic nuclide
Spin/parity	(3/2+)
Decay modes	electron capture + β⁺ decay
Discovery	1970
Mass excess	-77,940 ±12.49 keV
Binding energy	8,310 ±0.094 keV
Single-particle energy	2,757 ±23.92 keV
Neutron separation energy	10,780 ±31.46 keV
Q value for electron capture	4,480 ±20.58 keV
β⁻ decay energy	-5,606 ±48.22 keV
β⁻ decay energy with neutron	-14,590 ±27.24 keV

Point at nuclide Decay chain of Praseodymium-133

134PrPraseodymium-134

Classification	z: 59; n: 75; m: 134
Half life	17 ±2 m
Natural abundance	synthetic nuclide
Spin/parity	2-
Decay modes	electron capture + β⁺ decay
Discovery	1967
Mass excess	-78,530 ±20.31 keV
Binding energy	8,312 ±0.1516 keV
Single-particle energy	3,398 ±26.08 keV
Neutron separation energy	8,661 ±23.85 keV
Q value for electron capture	6,304 ±28.78 keV
β⁻ decay energy	-2,882 ±23.5 keV
β⁻ decay energy with neutron	-14,270 ±50.81 keV

Point at nuclide Decay chain of Praseodymium-134

135PrPraseodymium-135

Classification	z: 59; n: 76; m: 135
Half life	24 ±1 m
Natural abundance	synthetic nuclide
Spin/parity	3/2(+)
Decay modes	electron capture + β⁺ decay
Discovery	1954
Mass excess	-80,940 ±11.81 keV
Binding energy	8,328 ±0.0875 keV
Single-particle energy	3,391 ±23.56 keV
Neutron separation energy	10,470 ±23.5 keV
Q value for electron capture	3,680 ±15.65 keV
β⁻ decay energy	-4,723 ±22.48 keV
β⁻ decay energy with neutron	-13,370 ±16.71 keV

Point at nuclide Decay chain of Praseodymium-135

136PrPraseodymium-136

Classification	z: 59; n: 77; m: 136
Half life	13.1 ±1 m
Natural abundance	synthetic nuclide
Spin/parity	2+
Decay modes	electron capture + β⁺ decay
Discovery	1968
Mass excess	-81,350 ±11.45 keV
Binding energy	8,330 ±0.0842 keV
Single-particle energy	4,013 ±15.38 keV
Neutron separation energy	8,475 ±16.45 keV
Q value for electron capture	5,168 ±11.46 keV
β⁻ decay energy	-2,142 ±16.45 keV
β⁻ decay energy with neutron	-13,200 ±22.29 keV
Magnetic dipole moment	3.42 ±0.11 μN

Point at nuclide Decay chain of Praseodymium-136

137PrPraseodymium-137

Classification	z: 59; n: 78; m: 137
Half life	1.28 ±3 h
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	electron capture + β⁺ decay
Discovery	1958
Mass excess	-83,210 ±8.135 keV
Binding energy	8,341 ±0.0594 keV
Single-particle energy	3,982 ±8.133 keV
Neutron separation energy	9,932 ±14.04 keV
Q value for electron capture	2,716 ±8.143 keV
β⁻ decay energy	-3,618 ±14.27 keV
β⁻ decay energy with neutron	-12,080 ±14.34 keV

Point at nuclide Decay chain of Praseodymium-137

138PrPraseodymium-138

Classification	z: 59; n: 79; m: 138
Half life	1.45 ±5 m
Natural abundance	synthetic nuclide
Spin/parity	1+
Decay modes	electron capture + β⁺ decay
Discovery	1951
Mass excess	-83,130 ±10.01 keV
Binding energy	8,339 ±0.0726 keV
Single-particle energy	4,499 ±10.01 keV
Neutron separation energy	7,998 ±12.89 keV
Q value for electron capture	4,437 ±10 keV
β⁻ decay energy	-1,112 ±15.32 keV
β⁻ decay energy with neutron	-11,620 ±15.41 keV

Point at nuclide Decay chain of Praseodymium-138

139PrPraseodymium-139

Classification	z: 59; n: 80; m: 139
Half life	4.41 ±4 h
Natural abundance	synthetic nuclide
Spin/parity	5/2+
Decay modes	electron capture + β⁺ decay
Discovery	1951
Mass excess	-84,830 ±3.649 keV
Binding energy	8,349 ±0.0263 keV
Single-particle energy	4,551 ±3.683 keV
Neutron separation energy	9,771 ±10.65 keV
Q value for electron capture	2,129 ±4.205 keV
β⁻ decay energy	-2,812 ±27.61 keV
β⁻ decay energy with neutron	-10,890 ±12.16 keV

Point at nuclide Decay chain of Praseodymium-139

140PrPraseodymium-140

Classification	z: 59; n: 81; m: 140
Half life	3.39 ±1 m
Natural abundance	synthetic nuclide
Spin/parity	1+
Decay modes	electron capture + β⁺ decay
Discovery	1938
Mass excess	-84,690 ±6.142 keV
Binding energy	8,346 ±0.0439 keV
Single-particle energy	5,017 ±6.463 keV
Neutron separation energy	7,928 ±7.123 keV
Q value for electron capture	3,388 ±6.2 keV
β⁻ decay energy	-429 ±6.953 keV
β⁻ decay energy with neutron	-10,750 ±28.19 keV

Point at nuclide Decay chain of Praseodymium-140

141PrPraseodymium-141

Classification	z: 59; n: 82; m: 141
Half life	stable nuclide
Natural abundance	100 %
Spin/parity	5/2+
Discovery	1924
Mass excess	-86,020 ±1.498 keV
Binding energy	8,353 ±0.0106 keV
Single-particle energy	5,229 ±1.181 keV
Neutron separation energy	9,399 ±6.115 keV
Q value for electron capture	-583.5 ±1.993 keV
β⁻ decay energy	-1,824 ±2.809 keV
β⁻ decay energy with neutron	-9,829 ±3.587 keV
Magnetic dipole moment	4.266 ±0.003 μN
Electric quadrupole moment	-0.077 ±0.006 b

Point at nuclide

142PrPraseodymium-142

Classification	z: 59; n: 83; m: 142
Half life	19.12 ±4 h
Natural abundance	synthetic nuclide
Spin/parity	2-
Decay modes	β⁻ decay; electron capture (EC)
Discovery	1935
Mass excess	-83,790 ±1.498 keV
Binding energy	8,336 ±0.0106 keV
Single-particle energy	5,644 ±1.179 keV
Neutron separation energy	5,843 ±0.0768 keV
Q value for electron capture	746.5 ±2.866 keV
β⁻ decay energy	2,163 ±1.365 keV
β⁻ decay energy with neutron	-7,667 ±2.81 keV
Magnetic dipole moment	0.234 ±0.001 μN
Electric quadrupole moment	0.039 ±0.017 b

Point at nuclide Decay chain of Praseodymium-142

143PrPraseodymium-143

Classification	z: 59; n: 84; m: 143
Half life	13.57 ±2 d
Natural abundance	synthetic nuclide
Spin/parity	7/2+
Decay modes	β⁻ decay
Discovery	1948
Mass excess	-83,070 ±1.816 keV
Binding energy	8,329 ±0.0127 keV
Single-particle energy	5,824 ±1.866 keV
Neutron separation energy	7,353 ±1.888 keV
Q value for electron capture	-1,462 ±3.043 keV
β⁻ decay energy	934.1 ±1.367 keV
β⁻ decay energy with neutron	-5,190 ±1.368 keV
Magnetic dipole moment	2.695 ±0.005 μN
Electric quadrupole moment	0.77 ±0.16 b

Point at nuclide Decay chain of Praseodymium-143

144PrPraseodymium-144

Classification	z: 59; n: 85; m: 144
Half life	17.28 ±5 m
Natural abundance	synthetic nuclide
Spin/parity	0-
Decay modes	β⁻ decay
Discovery	1951
Mass excess	-80,760 ±2.708 keV
Binding energy	8,311 ±0.0188 keV
Single-particle energy	6,433 ±3.253 keV
Neutron separation energy	5,753 ±2.762 keV
Q value for electron capture	-318.7 ±3.919 keV
β⁻ decay energy	2,997 ±2.4 keV
β⁻ decay energy with neutron	-4,820 ±2.4 keV
Magnetic dipole moment	-1.2 ±0.4 μN

Point at nuclide Decay chain of Praseodymium-144

145PrPraseodymium-145

Classification	z: 59; n: 86; m: 145
Half life	5.984 ±10 h
Natural abundance	synthetic nuclide
Spin/parity	7/2+
Decay modes	β⁻ decay
Discovery	1954
Mass excess	-79,630 ±7.149 keV
Binding energy	8,302 ±0.0493 keV
Single-particle energy	6,483 ±7.484 keV
Neutron separation energy	6,946 ±7.438 keV
Q value for electron capture	-2,559 ±34.64 keV
β⁻ decay energy	1,806 ±7.037 keV
β⁻ decay energy with neutron	-3,950 ±7.04 keV

Point at nuclide Decay chain of Praseodymium-145

146PrPraseodymium-146

Classification	z: 59; n: 87; m: 146
Half life	24.09 ±10 m
Natural abundance	synthetic nuclide
Spin/parity	(2-)
Decay modes	β⁻ decay
Discovery	1953
Mass excess	-76,680 ±34.35 keV
Binding energy	8,280 ±0.2353 keV
Single-particle energy	6,895 ±48.26 keV
Neutron separation energy	5,118 ±35.08 keV
Q value for electron capture	-1,048 ±37.35 keV
β⁻ decay energy	4,252 ±34.36 keV
β⁻ decay energy with neutron	-3,313 ±34.36 keV

Point at nuclide Decay chain of Praseodymium-146

147PrPraseodymium-147

Classification	z: 59; n: 88; m: 147
Half life	13.44 ±10 m
Natural abundance	synthetic nuclide
Spin/parity	(3/2+)
Decay modes	β⁻ decay
Discovery	1964
Mass excess	-75,450 ±15.85 keV
Binding energy	8,270 ±0.1079 keV
Single-particle energy	7,107 ±21.59 keV
Neutron separation energy	6,841 ±37.83 keV
Q value for electron capture	-3,431 ±18.02 keV
β⁻ decay energy	2,702 ±15.85 keV
β⁻ decay energy with neutron	-2,590 ±15.85 keV

Point at nuclide Decay chain of Praseodymium-147

148PrPraseodymium-148

Classification	z: 59; n: 89; m: 148
Half life	2.29 ±2 m
Natural abundance	synthetic nuclide
Spin/parity	1-
Decay modes	β⁻ decay
Discovery	1964
Mass excess	-72,540 ±15.04 keV
Binding energy	8,249 ±0.1016 keV
Single-particle energy	7,810 ±17.31 keV
Neutron separation energy	5,162 ±21.84 keV
Q value for electron capture	-2,138 ±18.75 keV
β⁻ decay energy	4,872 ±15.08 keV
β⁻ decay energy with neutron	-2,460 ±15.06 keV

Point at nuclide Decay chain of Praseodymium-148

149PrPraseodymium-149

Classification	z: 59; n: 90; m: 149
Half life	2.26 ±8 m
Natural abundance	synthetic nuclide
Spin/parity	(5/2+)
Decay modes	β⁻ decay
Discovery	1964
Mass excess	-71,040 ±9.874 keV
Binding energy	8,238 ±0.0663 keV
Single-particle energy	7,929 ±14.92 keV
Neutron separation energy	6,575 ±17.99 keV
Q value for electron capture	-4,370 ±14.22 keV
β⁻ decay energy	3,336 ±10.08 keV
β⁻ decay energy with neutron	-1,703 ±10.08 keV

Point at nuclide Decay chain of Praseodymium-149

150PrPraseodymium-150

Classification	z: 59; n: 91; m: 150
Half life	6.19 ±16 s
Natural abundance	synthetic nuclide
Spin/parity	(1-)
Decay modes	β⁻ decay
Discovery	1970
Mass excess	-68,310 ±9.015 keV
Binding energy	8,218 ±0.0601 keV
Single-particle energy	8,919 ±13.64 keV
Neutron separation energy	5,332 ±13.37 keV
Q value for electron capture	-3,454 ±14.76 keV
β⁻ decay energy	5,379 ±9.068 keV
β⁻ decay energy with neutron	-1,997 ±9.233 keV

Point at nuclide Decay chain of Praseodymium-150

151PrPraseodymium-151

Classification	z: 59; n: 92; m: 151
Half life	18.9 ±7 s
Natural abundance	synthetic nuclide
Spin/parity	(3/2-)
Decay modes	β⁻ decay
Discovery	1990
Mass excess	-66,780 ±11.65 keV
Binding energy	8,207 ±0.0772 keV
Single-particle energy	9,221 ±16.5 keV
Neutron separation energy	6,550 ±14.72 keV
Q value for electron capture	-5,555 ±21.18 keV
β⁻ decay energy	4,163 ±11.67 keV
β⁻ decay energy with neutron	-1,172 ±11.67 keV

Point at nuclide Decay chain of Praseodymium-151

152PrPraseodymium-152

Classification	z: 59; n: 93; m: 152
Half life	3.57 ±18 s
Natural abundance	synthetic nuclide
Spin/parity	(4+)
Decay modes	β⁻ decay
Discovery	1983
Mass excess	-63,760 ±18.53 keV
Binding energy	8,187 ±0.122 keV
Single-particle energy	9,821 ±25.62 keV
Neutron separation energy	5,049 ±21.89 keV
Q value for electron capture	-4,779 ±200.8 keV
β⁻ decay energy	6,391 ±30.7 keV
β⁻ decay energy with neutron	-886.3 ±18.57 keV

Point at nuclide Decay chain of Praseodymium-152

153PrPraseodymium-153

Classification	z: 59; n: 94; m: 153
Half life	4.29 ±11 s
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1987
Mass excess	-61,570 ±11.88 keV
Binding energy	8,172 ±0.0777 keV
Single-particle energy	9,877 ±201 keV
Neutron separation energy	5,881 ±22.01 keV
Q value for electron capture	-6,659 ±200.3 keV
β⁻ decay energy	5,761 ±12.18 keV
β⁻ decay energy with neutron	509.8 ±27.2 keV

Point at nuclide Decay chain of Praseodymium-153

154PrPraseodymium-154

Classification	z: 59; n: 95; m: 154
Half life	2.3 ±1 s
Natural abundance	synthetic nuclide
Spin/parity	(3+)
Decay modes	β⁻ decay
Discovery	1988
Mass excess	-57,860 ±100 keV
Binding energy	8,147 ±0.6494 keV
Single-particle energy	10,230 ±224 keV
Neutron separation energy	4,362 ±100.7 keV
Q value for electron capture	-5,640 ±223.6 keV
β⁻ decay energy	7,720 ±100 keV
β⁻ decay energy with neutron	1,399 ±100 keV

Point at nuclide Decay chain of Praseodymium-154

155PrPraseodymium-155

Classification	z: 59; n: 96; m: 155
Half life	1.47 ±3 s
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1992
Mass excess	-55,420 ±17.19 keV
Binding energy	8,131 ±0.111 keV
Single-particle energy	10,480 ±201 keV
Neutron separation energy	5,627 ±101.4 keV
Q value for electron capture	-7,636 ±300.4 keV
β⁻ decay energy	6,868 ±19.47 keV
β⁻ decay energy with neutron	2,092 ±17.22 keV

Point at nuclide Decay chain of Praseodymium-155

156PrPraseodymium-156

Classification	z: 59; n: 97; m: 156
Half life	0.444 ±6 s
Natural abundance	synthetic nuclide
Spin/parity	(1+)
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	1992
Mass excess	-51,450 ±1.025 keV
Binding energy	8,105 ±0.0066 keV
Single-particle energy	10,950 ±300 keV
Neutron separation energy	4,105 ±17.22 keV
Q value for electron capture	-6,630 ±300 keV
β⁻ decay energy	8,752 ±1.658 keV
β⁻ decay energy with neutron	2,763 ±9.21 keV

Point at nuclide Decay chain of Praseodymium-156

157PrPraseodymium-157

Classification	z: 59; n: 98; m: 157
Half life	0.295 ± s
Natural abundance	synthetic nuclide
Spin/parity	(3/2-)
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	2017
Mass excess	-48,440 ±3.167 keV
Binding energy	8,085 ±0.0202 keV
Single-particle energy	10,900 ±300 keV
Neutron separation energy	5,056 ±3.328 keV
Q value for electron capture	-8,505 ±400 keV
β⁻ decay energy	8,059 ±3.82 keV
β⁻ decay energy with neutron	3,696 ±3.425 keV

Point at nuclide Decay chain of Praseodymium-157

158PrPraseodymium-158

Classification	z: 59; n: 99; m: 158
Half life	0.181 ±14 s
Natural abundance	synthetic nuclide
Spin/parity	(5-)
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	2016
Mass excess	-44,150 ±300 keV
Binding energy	8,059 ±2 keV
Single-particle energy	11,500 ±500 keV
Neutron separation energy	3,787 ±300 keV
Q value for electron capture	-7,610 ±500 keV
β⁻ decay energy	9,685 ±300 keV
β⁻ decay energy with neutron	4,273 ±300 keV

Point at nuclide Decay chain of Praseodymium-158

159PrPraseodymium-159

Classification	z: 59; n: 100; m: 159
Half life	0.13 ±4 s
Natural abundance	synthetic nuclide
Spin/parity	(3/2-)
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	2017
Mass excess	-40,770 ±400 keV
Binding energy	8,037 ±3 keV
Single-particle energy	11,510 ±565 keV
Neutron separation energy	4,691 ±500 keV
β⁻ decay energy	8,954 ±401 keV
β⁻ decay energy with neutron	4,994 ±400 keV

Point at nuclide Decay chain of Praseodymium-159

160PrPraseodymium-160

Classification	z: 59; n: 101; m: 160
Half life	0.17 ±14 s
Natural abundance	synthetic nuclide
Decay modes	β⁻ decay; β⁻ decay with neutron emission
Discovery	2017
Mass excess	-36,200 ±400 keV
Binding energy	8,009 ±2 keV
Single-particle energy	12,140 ±640 keV
Neutron separation energy	3,501 ±565 keV
β⁻ decay energy	10,520 ±402 keV
β⁻ decay energy with neutron	5,453 ±401 keV

Point at nuclide Decay chain of Praseodymium-160

161PrPraseodymium-161

Classification	z: 59; n: 102; m: 161
Half life	stable nuclide
Natural abundance	synthetic nuclide
Discovery	2018
Mass excess	-32,490 ±500 keV
Binding energy	7,986 ±3 keV
Neutron separation energy	4,361 ±640 keV
β⁻ decay energy	9,741 ±640 keV
β⁻ decay energy with neutron	6,164 ±502 keV

Point at nuclide

Isotopes of Praseodymium

121PrPraseodymium-121ads_clickcall_splitdownload

124PrPraseodymium-124ads_clickcall_splitdownload

125PrPraseodymium-125ads_clickcall_splitdownload

126PrPraseodymium-126ads_clickcall_splitdownload

127PrPraseodymium-127ads_clickcall_splitdownload

128PrPraseodymium-128ads_clickcall_splitdownload

129PrPraseodymium-129ads_clickcall_splitdownload

130PrPraseodymium-130ads_clickcall_splitdownload

131PrPraseodymium-131ads_clickcall_splitdownload

132PrPraseodymium-132ads_clickcall_splitdownload

133PrPraseodymium-133ads_clickcall_splitdownload

134PrPraseodymium-134ads_clickcall_splitdownload

135PrPraseodymium-135ads_clickcall_splitdownload

136PrPraseodymium-136ads_clickcall_splitdownload

137PrPraseodymium-137ads_clickcall_splitdownload

138PrPraseodymium-138ads_clickcall_splitdownload

139PrPraseodymium-139ads_clickcall_splitdownload

140PrPraseodymium-140ads_clickcall_splitdownload

141PrPraseodymium-141ads_clickdownload

142PrPraseodymium-142ads_clickcall_splitdownload

143PrPraseodymium-143ads_clickcall_splitdownload

144PrPraseodymium-144ads_clickcall_splitdownload

145PrPraseodymium-145ads_clickcall_splitdownload

146PrPraseodymium-146ads_clickcall_splitdownload

147PrPraseodymium-147ads_clickcall_splitdownload

148PrPraseodymium-148ads_clickcall_splitdownload

149PrPraseodymium-149ads_clickcall_splitdownload

150PrPraseodymium-150ads_clickcall_splitdownload

151PrPraseodymium-151ads_clickcall_splitdownload

152PrPraseodymium-152ads_clickcall_splitdownload

153PrPraseodymium-153ads_clickcall_splitdownload

154PrPraseodymium-154ads_clickcall_splitdownload

155PrPraseodymium-155ads_clickcall_splitdownload

156PrPraseodymium-156ads_clickcall_splitdownload

157PrPraseodymium-157ads_clickcall_splitdownload

158PrPraseodymium-158ads_clickcall_splitdownload

159PrPraseodymium-159ads_clickcall_splitdownload

160PrPraseodymium-160ads_clickcall_splitdownload

161PrPraseodymium-161ads_clickdownload

121PrPraseodymium-121

124PrPraseodymium-124

125PrPraseodymium-125

126PrPraseodymium-126

127PrPraseodymium-127

128PrPraseodymium-128

129PrPraseodymium-129

130PrPraseodymium-130

131PrPraseodymium-131

132PrPraseodymium-132

133PrPraseodymium-133

134PrPraseodymium-134

135PrPraseodymium-135

136PrPraseodymium-136

137PrPraseodymium-137

138PrPraseodymium-138

139PrPraseodymium-139

140PrPraseodymium-140

141PrPraseodymium-141

142PrPraseodymium-142

143PrPraseodymium-143

144PrPraseodymium-144

145PrPraseodymium-145

146PrPraseodymium-146

147PrPraseodymium-147

148PrPraseodymium-148

149PrPraseodymium-149

150PrPraseodymium-150

151PrPraseodymium-151

152PrPraseodymium-152

153PrPraseodymium-153

154PrPraseodymium-154

155PrPraseodymium-155

156PrPraseodymium-156

157PrPraseodymium-157

158PrPraseodymium-158

159PrPraseodymium-159

160PrPraseodymium-160

161PrPraseodymium-161