Isotopes of Germanium - Table

Table

nuclide
symbol		 Z(p) N(n)
isotopic mass (u)
 half-life decay
mode(s)		 daughter
isotope(s)		 nuclear
spin		 representative
isotopic
composition
(mole fraction)		 range of natural
variation
(mole fraction)
excitation energy
58Ge 32 26 57.99101(34)# 2p 56Zn 0+
59Ge 32 27 58.98175(30)# 2p 57Zn 7/2-#
60Ge 32 28 59.97019(25)# 30# ms β+ 60Ga 0+
2p 58Zn
61Ge 32 29 60.96379(32)# 39(12) ms β+, p (80%) 60Zn (3/2-)#
β+ (20%) 61Ga
62Ge 32 30 61.95465(15)# 129(35) ms β+ 62Ga 0+
63Ge 32 31 62.94964(21)# 142(8) ms β+ 63Ga (3/2-)#
64Ge 32 32 63.94165(3) 63.7(25) s β+ 64Ga 0+
65Ge 32 33 64.93944(11) 30.9(5) s β+ (99.99%) 65Ga (3/2)-
β+, p (.01%) 64Zn
66Ge 32 34 65.93384(3) 2.26(5) h β+ 66Ga 0+
67Ge 32 35 66.932734(5) 18.9(3) min β+ 67Ga 1/2-
67m1Ge 18.20(5) keV 13.7(9) µs 5/2-
67m2Ge 751.70(6) keV 110.9(14) ns 9/2+
68Ge 32 36 67.928094(7) 270.95(16) d EC 68Ga 0+
69Ge 32 37 68.9279645(14) 39.05(10) h β+ 69Ga 5/2-
69m1Ge 86.765(14) keV 5.1(2) µs 1/2-
69m2Ge 397.944(18) keV 2.81(5) µs 9/2+
70Ge 32 38 69.9242474(11) Stable 0+ 0.2038(18)
71Ge 32 39 70.9249510(11) 11.43(3) d EC 71Ga 1/2-
71mGe 198.367(10) keV 20.40(17) ms IT 71Ge 9/2+
72Ge 32 40 71.9220758(18) Stable 0+ 0.2731(26)
72mGe 691.43(4) keV 444.2(8) ns 0+
73Ge 32 41 72.9234589(18) Stable 9/2+ 0.0776(8)
73m1Ge 13.2845(15) keV 2.92(3) µs 5/2+
73m2Ge 66.726(9) keV 499(11) ms 1/2-
74Ge 32 42 73.9211778(18) Stable 0+ 0.3672(15)
75Ge 32 43 74.9228589(18) 82.78(4) min β- 75As 1/2-
75m1Ge 139.69(3) keV 47.7(5) s IT (99.97%) 75Ge 7/2+
β- 75As
75m2Ge 192.18(7) keV 216(5) ns 5/2+
76Ge 32 44 75.9214026(18) 1.78(8)×1021 a β-β- 76Se 0+ 0.0783(7)
77Ge 32 45 76.9235486(18) 11.30(1) h β- 77As 7/2+
77mGe 159.70(10) keV 52.9(6) s β- (79%) 77As 1/2-
IT (21%) 77Ge
78Ge 32 46 77.922853(4) 88(1) min β- 78As 0+
79Ge 32 47 78.9254(1) 18.98(3) s β- 79As (1/2)-
79mGe 185.95(4) keV 39.0(10) s β- (96%) 79As (7/2+)#
IT (4%) 79Ge
80Ge 32 48 79.92537(3) 29.5(4) s β- 80As 0+
81Ge 32 49 80.92882(13) 7.6(6) s β- 81As 9/2+#
81mGe 679.13(4) keV 7.6(6) s β- (99%) 81As (1/2+)
IT (1%) 81Ge
82Ge 32 50 81.92955(26) 4.55(5) s β- 82As 0+
83Ge 32 51 82.93462(21)# 1.85(6) s β- 83As (5/2+)#
84Ge 32 52 83.93747(32)# 0.947(11) s β- (89.2%) 84As 0+
β-, n (10.8%) 83As
85Ge 32 53 84.94303(43)# 535(47) ms β- (86%) 85As 5/2+#
β-, n (14%) 84As
86Ge 32 54 85.94649(54)# >150 ns β-, n 85As 0+
β- 86As
87Ge 32 55 86.95251(54)# 0.14# s 5/2+#
88Ge 32 56 87.95691(75)# >=300 ns 0+
89Ge 32 57 88.96383(97)# >150 ns 3/2+#

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