Molecule of the Week

Xenon tetroxide

October 8, 2012

Xenon tetroxide (XeO4) is an unusual noble gas compound. It contains xenon in its highest possible oxidation state (+8). Its yellow crystals are stable below –36 °C, but it decomposes explosively above that temperature. It must be handled under strict safety precautions. XeO4’s tetrahedral geometry follows valence shell electron pair repulsion (VSEPR) rules.

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