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PIMSO 2023 - Science - Secondary 3 - National Round Question 24

PIMSO Science · PIMSO 2023 - Science - Secondary 3 - National Round

Question 24

Per-and polyfluoroalkyl substances (PFAS) are synthetic organic chemicals that contain at least one fully fluorinated carbon atom. These chemicals have strong water- and oil-repellant properties, therefore, these have been widely used as coating in several consumer products. Which periodic property of fluorine contributes to the features associated with PFAS?
  1. Electronegativity
  2. Atomic radius
  3. Nonmetallic character
  4. Ionization energy
  5. Electron affinity