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Sn
42 known isotopes (10 stable,
32 radioactive)
99Sn
Mass
98.948495 u
Abundance —
Half-life 760 nanoseconds
Spin/Parity —
Decay Mode(s) Unknown
100Sn
Mass
99.938649 u
Abundance —
Half-life 1.18 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%), ECP (17%)
101Sn
Mass
100.935259 u
Abundance —
Half-life 1.7 seconds
Spin/Parity (5/2+)
Decay Mode(s) EC/β⁺ (100%), ECP (26%)
102Sn
Mass
101.930290 u
Abundance —
Half-life 3.8 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
103Sn
Mass
102.927973 u
Abundance —
Half-life 7.0 seconds
Spin/Parity (5/2+)
Decay Mode(s) EC/β⁺ (100%), ECP (1.2%)
104Sn
Mass
103.923105 u
Abundance —
Half-life 20.8 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
105Sn
Mass
104.921268 u
Abundance —
Half-life 32.7 seconds
Spin/Parity (5/2+)
Decay Mode(s) EC/β⁺ (100%), β⁺p (0.011%)
106Sn
Mass
105.916957 u
Abundance —
Half-life 115 seconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
107Sn
Mass
106.915714 u
Abundance —
Half-life 2.90 m
Spin/Parity (5/2+)
Decay Mode(s) EC/β⁺ (100%)
108Sn
Mass
107.911894 u
Abundance —
Half-life 10.30 m
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
109Sn
Mass
108.911293 u
Abundance —
Half-life 18.1 m
Spin/Parity 5/2+
Decay Mode(s) EC/β⁺ (100%)
110Sn
Mass
109.907845 u
Abundance —
Half-life 4.154 h
Spin/Parity 0+
Decay Mode(s) Electron capture (100%)
111Sn
Mass
110.907741 u
Abundance —
Half-life 35.3 m
Spin/Parity 7/2+
Decay Mode(s) EC/β⁺ (100%)
112Sn Stable
Mass
111.904825 u
Abundance 0.9700%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
113Sn
Mass
112.905176 u
Abundance —
Half-life 115.09 d
Spin/Parity 1/2+
Decay Mode(s) EC/β⁺ (100%)
114Sn Stable
Mass
113.902780 u
Abundance 0.6600%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
115Sn Stable
Mass
114.903345 u
Abundance 0.3400%
Half-life Stable
Spin/Parity 1/2+
Decay Mode(s) —
116Sn Stable
Mass
115.901743 u
Abundance 14.5400%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
117Sn Stable
Mass
116.902954 u
Abundance 7.6800%
Half-life Stable
Spin/Parity 1/2+
Decay Mode(s) —
118Sn Stable
Mass
117.901607 u
Abundance 24.2200%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
119Sn Stable
Mass
118.903311 u
Abundance 8.5900%
Half-life Stable
Spin/Parity 1/2+
Decay Mode(s) —
120Sn Stable
Mass
119.902203 u
Abundance 32.5800%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
121Sn
Mass
120.904243 u
Abundance —
Half-life 27.03 h
Spin/Parity 3/2+
Decay Mode(s) β⁻ (100%)
122Sn Stable
Mass
121.903445 u
Abundance 4.6300%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
123Sn
Mass
122.905727 u
Abundance —
Half-life 129.2 d
Spin/Parity 11/2-
Decay Mode(s) β⁻ (100%)
124Sn Stable
Mass
123.905280 u
Abundance 5.7900%
Half-life Stable
Spin/Parity 0+
Decay Mode(s) —
125Sn
Mass
124.907789 u
Abundance —
Half-life 9.64 d
Spin/Parity 11/2-
Decay Mode(s) β⁻ (100%)
126Sn
Mass
125.907659 u
Abundance —
Half-life 2.18E+5 years
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
127Sn
Mass
126.910392 u
Abundance —
Half-life 2.10 h
Spin/Parity 11/2-
Decay Mode(s) β⁻ (100%)
128Sn
Mass
127.910508 u
Abundance —
Half-life 59.07 m
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
129Sn
Mass
128.913482 u
Abundance —
Half-life 2.23 m
Spin/Parity 3/2+
Decay Mode(s) β⁻ (100%)
130Sn
Mass
129.913975 u
Abundance —
Half-life 3.72 m
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
131Sn
Mass
130.917053 u
Abundance —
Half-life 56.0 seconds
Spin/Parity (3/2+)
Decay Mode(s) β⁻ (100%)
132Sn
Mass
131.917824 u
Abundance —
Half-life 39.7 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
133Sn
Mass
132.923914 u
Abundance —
Half-life 1.46 seconds
Spin/Parity 7/2-
Decay Mode(s) β⁻ (100%), β⁻n (0.0294%)
134Sn
Mass
133.928680 u
Abundance —
Half-life 1.050 seconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%), β⁻n (17%)
135Sn
Mass
134.934909 u
Abundance —
Half-life 515 milliseconds
Spin/Parity (7/2-)
Decay Mode(s) β⁻ (100%), β⁻n (21%)
136Sn
Mass
135.939699 u
Abundance —
Half-life 345 milliseconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%), β⁻n (27%)
137Sn
Mass
136.946162 u
Abundance —
Half-life 190 milliseconds
Spin/Parity —
Decay Mode(s) β⁻ (100%), β⁻n (58%)
138Sn
Mass
137.951143 u
Abundance —
Half-life 140 milliseconds
Spin/Parity 0+
Decay Mode(s) β⁻ (100%), β⁻n (36%)
139Sn
Mass
138.957799 u
Abundance —
Half-life 130 milliseconds
Spin/Parity —
Decay Mode(s) β⁻ (100%)
140Sn
Mass
139.962973 u
Abundance —
Half-life Unknown
Spin/Parity 0+
Decay Mode(s) β⁻ (100%)
Decay mode abbreviations:
β⁻ = Beta minus decay, β⁺ = Beta plus decay, EC = Electron capture, α = Alpha decay
n = Neutron emission, p = Proton emission, SF = Spontaneous fission, IT = Isomeric transition
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