Electronegativity

• more electrons = more electronegativity
• Electronegativity

  • ability of an atom to attract electrons in a chemical bond
  • used to determine what bond type is present
• The larger the electronegativity difference between 2 atoms, the more polar the bond will be.
• Polarity


  the distribution of electrical change among the atoms connected by a chemical bond.
• Anions usually have more electronegativity.
• 3 elements w/ the most electronegativity:

  • Fluorine (has the highest electron negativity)
  • Oxygen
  • Nitrogen
• Types of Bonds:

  Nonpolar Covalent Bond -- 0 to less than 0.5
• Types of Bonds:

  Polar Covalent Bond -- 0.4 to 1.78
• Types of Bonds:

  Ionic Bond -- greater than 1.78
• When subtracting, higher electronegativity is usually written first.