| 
  |  |     | # | Species | Formula |    | 6256 | Xenon fluoride, anion (Geo) | FXe |  |    | 6257 | Xenon tetrafluoride (Geo) | F4Xe |  |    | 6258 | Xenon tetrafluoride | F4Xe |  |    | 6259 | Xenon sodium, cation (Geo) | NaXe |  |    | 6260 | Xenon chloride, anion (Geo) | ClXe |  |    | 6261 | Xenon potassium, cation (Geo) | KXe |  |    | 6262 | Xenon bromide, anion (Geo) | BrXe |  |    | 6263 | Xenon iodide, anion (Geo) | IXe |  |    | 6264 | Cesium, cation | Cs |  |    | 6265 | Cesium, 2P(u) - 6s(0)6p(1) | Cs |  |    | 6266 | Cesium, 2S(g) - 6s(1)6p(0) | Cs |  |    | 6267 | Cesium, atom | Cs |  |    | 6268 | Cesium, anion | Cs |  |    | 6269 | Methyl cesium (Geo) | CH3Cs |  |    | 6270 | Methyl cesium | CH3Cs |  |    | 6271 | Cesium cyclopentadienide (Geo) | C5H5Cs |  |    | 6272 | Cesium oxide (CsO) | OCs |  |    | 6273 | Cesium hydroxide | HOCs |  |    | 6274 | Cesium hydroxide (Geo) | HOCs |  |    | 6275 | CsBO2 | BO2Cs |  |    | 6276 | Cs-OBO (Geo) | BO2Cs |  | 
 |