P BLOCK ELEMENTS Quiz

• Higher oxidation states make Cl more electronegative
• More oxygen atoms increase the molecular weight
• Higher oxidation states lead to greater delocalization of negative charge in the conjugate base
• Higher oxidation states make the H-Cl bond weaker

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• XeO₃
• XeOF₂
• XeO₂F₂ and Xe
• HF

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• Fluorine atoms are too small
• Fluorine cannot form stable molecules
• Strong repulsion between lone pairs on the small fluorine atoms
• Fluorine has a very high ionization energy

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• Helium is lighter
• Helium has a lower boiling point
• Helium has a complete electron shell (1s²)
• Helium is more abundant

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• Atomic size increases
• Molecular weight increases
• The energy gap for electronic transitions decreases down the group
• Electronegativity decreases

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