PrayogX › Chemistry › The p-Block Elements (Group 18)

Xenon fluorides: identifying P, Q and R and testing their geometries

Set the Xe:F2 ratio, temperature and pressure to make XeF4, push it to XeF6 with O2F2 and hydrolyse that to XeO3, then count lone pairs on a rotatable 3D model to test each printed statement.

Sub-topics covered

• Preparation of xenon fluorides and the role of the Xe:F2 ratio
• VSEPR and steric number from valence-electron counting
• Lone pairs and distorted geometries
• Complete versus partial hydrolysis of XeF6
• Xenon fluorides as fluorinating agents
• Oxidation states of xenon

What it teaches

• Lone pairs come from valence electrons left over after bonding
• Steric number 7 cannot give a perfect octahedron
• The fluorine-to-xenon ratio selects which fluoride forms
• Hydrolysis substitutes without changing the oxidation state
• A high oxidation state held by fluorine makes a fluorinating agent

Simulation ID

• ADV-2026-P2-CHE-Q06 · revision 1

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