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Xenon Isotopes

Stable Xenon Isotopes - Xe Isotopes

Nominal
Mass
Accurate
Mass
% Natural
Abundance
Chemical
Form
Enrichment
Available %

124 Xe 123.9058942 (22) 0.09 (1) gas 99+

126 Xe 125.904281 (8) 0.09 (1) gas 99+

128 Xe 127.9035312 (17) 1.92 (3) gas 99+

129 Xe 128.9047801 (21) 26.44 (24) gas 80 - 99+

130 Xe 129.9035094 (17) 4.08 (2) gas 99+

131 Xe 130.905072 (5) 21.18 (3) gas 99+

132 Xe 131.904144 (5) 26.9 (6) gas 99+

134 Xe 133.905395 (8) 10.44 (10) gas 99+

136 Xe 135.907214 (8) 8.9 (16) gas 99+

Of the nine stable Xenon Isotopes, several are used in various medical and scientific applications. Xe-124 is used in the production of two radioisotopes: I-123 and I-125. I-123 is used extensively in diagnostic procedures while I-125 is used in the treatment of prostate cancer. Hyperpolarized Xe-129 is used in the magnetic resonance imaging of gas flows in the lungs. Xe-136 has been proposed as a detector for neutrinoless double Beta decay research. Xe-126 can be used as a target for the production of radioactive Ba-128.