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.