Periodic Trends

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• Used in Covalent Bonds and intermolecular forces
• Measure of atom’s ability to attract electrons in a chemical bond
• Dimensionless quantity ranging from 0 to 4
• Higher values indicate greater electronegativity
• Elements with high electronegativity:
  • Fluorine
  • Oxygen
• Tend to form ionic bonds with elements with low electronegativity
• Elements with low electronegativity:
  • Sodium
  • Potassium