List of isotopes
, - , rowspan=3, 121Pr , rowspan=3 style="text-align:right" , 59 , rowspan=3 style="text-align:right" , 62 , rowspan=3, 120.95536(75)# , rowspan=3, 600(300) ms , p , 120Ce , rowspan=3, (3/2−) , rowspan=3, , rowspan=3, , - , β+ (rare) , 121Ce , - , β+, p (rare) , 120La , - , 122Pr , style="text-align:right" , 59 , style="text-align:right" , 63 , 121.95181(54)# , 500# ms , β+ , 122Ce , , , , - , 123Pr , style="text-align:right" , 59 , style="text-align:right" , 64 , 122.94596(64)# , 800# ms , β+ , 123Ce , 3/2+# , , , - , rowspan=2, 124Pr , rowspan=2 style="text-align:right" , 59 , rowspan=2 style="text-align:right" , 65 , rowspan=2, 123.94296(64)# , rowspan=2, 1.2(2) s , β+ , 124Ce , rowspan=2, , rowspan=2, , rowspan=2, , - , β+, p (rare) , 123La , - , rowspan=2, 125Pr , rowspan=2 style="text-align:right" , 59 , rowspan=2 style="text-align:right" , 66 , rowspan=2, 124.93783(43)# , rowspan=2, 3.3(7) s , β+ , 125Ce , rowspan=2, 3/2+# , rowspan=2, , rowspan=2, , - , β+, p (rare) , 124La , - , rowspan=2, 126Pr , rowspan=2 style="text-align:right" , 59 , rowspan=2 style="text-align:right" , 67 , rowspan=2, 125.93531(21)# , rowspan=2, 3.12(18) s , β+ , 126Ce , rowspan=2, (4, 5, 6) , rowspan=2, , rowspan=2, , - , β+, p (rare) , 125La , - , 127Pr , style="text-align:right" , 59 , style="text-align:right" , 68 , 126.93083(21)# , 4.2(3) s , β+ , 127Ce , 3/2+# , , , - , style="text-indent:1em" , 127mPr , colspan="3" style="text-indent:2em" , 600(200)# keV , 50# ms , , , 11/2− , , , - , rowspan=2, 128Pr , rowspan=2 style="text-align:right" , 59 , rowspan=2 style="text-align:right" , 69 , rowspan=2, 127.92879(3) , rowspan=2, 2.84(9) s , β+ , 128Ce , rowspan=2, (3+) , rowspan=2, , rowspan=2, , - , β+, p (rare) , 127La , - , 129Pr , style="text-align:right" , 59 , style="text-align:right" , 70 , 128.92510(3) , 32(3) s , β+ , 129Ce , (11/2−) , , , - , style="text-indent:1em" , 129mPr , colspan="3" style="text-indent:2em" , 382.7(5) keV , 1# ms , β+ , 129Ce , (11/2−) , , , - , 130Pr , style="text-align:right" , 59 , style="text-align:right" , 71 , 129.92359(7) , 40.0(4) s , β+ , 130Ce , (6, 7)(+#) , , , - , style="text-indent:1em" , 130mPr , colspan="3" style="text-indent:2em" , 100(100)# keV , 10# s , , , 2+# , , , - , 131Pr , style="text-align:right" , 59 , style="text-align:right" , 72 , 130.92026(6) , 1.50(3) min , β+ , 131Ce , (3/2+) , , , - , rowspan=2 style="text-indent:1em" , 131mPr , rowspan=2 colspan="3" style="text-indent:2em" , 152.4(2) keV , rowspan=2, 5.7(2) s , IT (96.4%) , 131Pr , rowspan=2, (11/2−) , rowspan=2, , rowspan=2, , - , β+ (3.59%) , 131Ce , - , 132Pr , style="text-align:right" , 59 , style="text-align:right" , 73 , 131.91926(6) , 1.49(11) min , β+ , 132Ce , (2+) , , , - , style="text-indent:1em" , 132mPr , colspan="3" style="text-indent:2em" , 0(100)# keV , 20# s , β+ , 132Ce , (5+) , , , - , 133Pr , style="text-align:right" , 59 , style="text-align:right" , 74 , 132.916331(13) , 6.5(3) min , β+ , 133Ce , (3/2+) , , , - , style="text-indent:1em" , 133mPr , colspan="3" style="text-indent:2em" , 192.05(14) keV , 1.1(2) μs , , , (11/2−) , , , - , 134Pr , style="text-align:right" , 59 , style="text-align:right" , 75 , 133.91571(4) , 17(2) min , β+ , 134Ce , (5−) , , , - , style="text-indent:1em" , 134mPr , colspan="3" style="text-indent:2em" , 0(100)# keV , ~11 min , β+ , 134Ce , 2− , , , - , 135Pr , style="text-align:right" , 59 , style="text-align:right" , 76 , 134.913112(13) , 24(2) min , β+ , 135Ce , 3/2(+) , , , - , style="text-indent:1em" , 135mPr , colspan="3" style="text-indent:2em" , 358.06(6) keV , 105(10) μs , , , (11/2−) , , , - , 136Pr , style="text-align:right" , 59 , style="text-align:right" , 77 , 135.912692(13) , 13.1(1) min , β+ , 136Ce , 2+ , , , - , 137Pr , style="text-align:right" , 59 , style="text-align:right" , 78 , 136.910705(13) , 1.28(3) h , β+ , 137Ce , 5/2+ , , , - , style="text-indent:1em" , 137mPr , colspan="3" style="text-indent:2em" , 561.22(23) keV , 2.66(7) μs , , , 11/2− , , , - , 138Pr , style="text-align:right" , 59 , style="text-align:right" , 79 , 137.910755(15) , 1.45(5) min , β+ , 138Ce , 1+ , , , - , style="text-indent:1em" , 138mPr , colspan="3" style="text-indent:2em" , 348(23) keV , 2.12(4) h , β+ , 138Ce , 7− , , , - , 139Pr , style="text-align:right" , 59 , style="text-align:right" , 80 , 138.908938(8) , 4.41(4) h , β+ , 139Ce , 5/2+ , , , - , 140Pr , style="text-align:right" , 59 , style="text-align:right" , 81 , 139.909076(7) , 3.39(1) min , β+ , 140Ce , 1+ , , , - , style="text-indent:1em" , 140m1Pr , colspan="3" style="text-indent:2em" , 127.5(3) keV , 0.35(2) μs , , , 5+ , , , - , style="text-indent:1em" , 140m2Pr , colspan="3" style="text-indent:2em" , 763.3(7) keV , 3.05(20) μs , , , (8)− , , , - , 141Pr Fission product , style="text-align:right" , 59 , style="text-align:right" , 82 , 140.9076528(26) , colspan=3 align=center, StableTheoretically capable of spontaneous fission , 5/2+ , 1.0000 , , - , rowspan=2, 142Pr , rowspan=2 style="text-align:right" , 59 , rowspan=2 style="text-align:right" , 83 , rowspan=2, 141.9100448(26) , rowspan=2, 19.12(4) h , β− (99.98%) , 142Nd , rowspan=2, 2− , rowspan=2, , rowspan=2, , - , EC (.0164%) , 142Ce , - , style="text-indent:1em" , 142mPr , colspan="3" style="text-indent:2em" , 3.694(3) keV , 14.6(5) min , IT , 142Pr , 5− , , , - , 143Pr , style="text-align:right" , 59 , style="text-align:right" , 84 , 142.9108169(28) , 13.57(2) d , β− , 143Nd , 7/2+ , , , - , 144Pr , style="text-align:right" , 59 , style="text-align:right" , 85 , 143.913305(4) , 17.28(5) min , β− , ''144Nd'' , 0− , , , - , rowspan=2 style="text-indent:1em" , 144mPr , rowspan=2 colspan="3" style="text-indent:2em" , 59.03(3) keV , rowspan=2, 7.2(3) min , IT (99.93%) , 144Pr , rowspan=2, 3− , rowspan=2, , rowspan=2, , - , β− (.07%) , ''144Nd'' , - , 145Pr , style="text-align:right" , 59 , style="text-align:right" , 86 , 144.914512(8) , 5.984(10) h , β− , 145Nd , 7/2+ , , , - , 146Pr , style="text-align:right" , 59 , style="text-align:right" , 87 , 145.91764(7) , 24.15(18) min , β− , 146Nd , (2)− , , , - , 147Pr , style="text-align:right" , 59 , style="text-align:right" , 88 , 146.918996(25) , 13.4(4) min , β− , 147Nd , (3/2+) , , , - , 148Pr , style="text-align:right" , 59 , style="text-align:right" , 89 , 147.922135(28) , 2.29(2) min , β− , 148Nd , 1− , , , - , style="text-indent:1em" , 148mPr , colspan="3" style="text-indent:2em" , 50(30)# keV , 2.01(7) min , β− , 148Nd , (4) , , , - , 149Pr , style="text-align:right" , 59 , style="text-align:right" , 90 , 148.92372(9) , 2.26(7) min , β− , 149Nd , (5/2+) , , , - , 150Pr , style="text-align:right" , 59 , style="text-align:right" , 91 , 149.926673(28) , 6.19(16) s , β− , ''150Nd'' , (1)− , , , - , 151Pr , style="text-align:right" , 59 , style="text-align:right" , 92 , 150.928319(25) , 18.90(7) s , β− , 151Nd , (3/2)(−#) , , , - , 152Pr , style="text-align:right" , 59 , style="text-align:right" , 93 , 151.93150(13) , 3.63(12) s , β− , 152Nd , 4+ , , , - , 153Pr , style="text-align:right" , 59 , style="text-align:right" , 94 , 152.93384(11) , 4.28(11) s , β− , 153Nd , 5/2−# , , , - , 154Pr , style="text-align:right" , 59 , style="text-align:right" , 95 , 153.93752(16) , 2.3(1) s , β− , 154Nd , (3+, 2+) , , , - , 155Pr , style="text-align:right" , 59 , style="text-align:right" , 96 , 154.94012(32)# , 1# s 300 ns, β− , 155Nd , 5/2−# , , , - , 156Pr , style="text-align:right" , 59 , style="text-align:right" , 97 , 155.94427(43)# , 500# ms 300 ns, β− , 156Nd , , , , - , 157Pr , style="text-align:right" , 59 , style="text-align:right" , 98 , 156.94743(43)# , 300# ms , β− , 157Nd , 5/2−# , , , - , 158Pr , style="text-align:right" , 59 , style="text-align:right" , 99 , 157.95198(64)# , 200# ms , β− , 158Nd , , , , - , 159Pr , style="text-align:right" , 59 , style="text-align:right" , 100 , 158.95550(75)# , 100# ms , β− , 159Nd , 5/2−# , ,References