Isotopes of Zirconium - 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
78Zr 40 38 77.95523(54)# 50# ms
 0+
79Zr 40 39 78.94916(43)# 56(30) ms β+, p 78Sr 5/2+#
β+ 79Y
80Zr 40 40 79.9404(16) 4.6(6) s β+ 80Y 0+
81Zr 40 41 80.93721(18) 5.5(4) s β+ (>99.9%) 81Y (3/2-)#
β+, p (<.1%) 80Sr
82Zr 40 42 81.93109(24)# 32(5) s β+ 82Y 0+
83Zr 40 43 82.92865(10) 41.6(24) s β+ (>99.9%) 83Y (1/2-)#
β+, p (<.1%) 82Sr
84Zr 40 44 83.92325(21)# 25.9(7) min β+ 84Y 0+
85Zr 40 45 84.92147(11) 7.86(4) min β+ 85Y 7/2+
85mZr 292.2(3) keV 10.9(3) s IT (92%) 85Zr (1/2-)
β+ (8%) 85Y
86Zr 40 46 85.91647(3) 16.5(1) h β+ 86Y 0+
87Zr 40 47 86.914816(9) 1.68(1) h β+ 86Y (9/2)+
87mZr 335.84(19) keV 14.0(2) s IT 87Zr (1/2)-
88Zr 40 48 87.910227(11) 83.4(3) d EC 88Y 0+
89Zr 40 49 88.908890(4) 78.41(12) h β+ 89Y 9/2+
89mZr 587.82(10) keV 4.161(17) min IT (93.77%) 89Zr 1/2-
β+ (6.23%) 89Y
90Zr 40 50 89.9047044(25) Stable 0+ 0.5145(40)
90m1Zr 2319.000(10) keV 809.2(20) ms IT 90Zr 5-
90m2Zr 3589.419(16) keV 131(4) ns 8+
91Zr 40 51 90.9056458(25) Stable 5/2+ 0.1122(5)
91mZr 3167.3(4) keV 4.35(14) µs (21/2+)
92Zr 40 52 91.9050408(25) Stable 0+ 0.1715(8)
93Zr 40 53 92.9064760(25) 1.53(10)×106 a β- 93Nb 5/2+
94Zr 40 54 93.9063152(26) Observationally Stable 0+ 0.1738(28)
95Zr 40 55 94.9080426(26) 64.032(6) d β- 95Nb 5/2+
96Zr 40 56 95.9082734(30) 20(4)×1018 a β-β- 96Mo 0+ 0.0280(9)
97Zr 40 57 96.9109531(30) 16.744(11) h β- 97mNb 1/2+
98Zr 40 58 97.912735(21) 30.7(4) s β- 98Nb 0+
99Zr 40 59 98.916512(22) 2.1(1) s β- 99mNb 1/2+
100Zr 40 60 99.91776(4) 7.1(4) s β- 100Nb 0+
101Zr 40 61 100.92114(3) 2.3(1) s β- 101Nb 3/2+
102Zr 40 62 101.92298(5) 2.9(2) s β- 102Nb 0+
103Zr 40 63 102.92660(12) 1.3(1) s β- 103Nb (5/2-)
104Zr 40 64 103.92878(43)# 1.2(3) s β- 104Nb 0+
105Zr 40 65 104.93305(43)# 0.6(1) s β- (>99.9%) 105Nb
β-, n (<.1%) 104Nb
106Zr 40 66 105.93591(54)# 200# ms
 β- 106Nb 0+
107Zr 40 67 106.94075(32)# 150# ms
 β- 107Nb
108Zr 40 68 107.94396(64)# 80# ms
 β- 108Nb 0+
109Zr 40 69 108.94924(54)# 60# ms
110Zr 40 70 109.95287(86)# 30# ms
 0+

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