CHEMICAL BONDING

• IONIZATION ENERGY - required energy to remove valence electron from an atom.

  • from left to right, bottom to top ionization energy increases
• ELECTRONEGATIVITY - tendency of an atom to attract electron.

  • from left to right, bottom to top electronegativity increses

  • fluorine has the highest value electronegativity
• TYPES OF BONDING

  Ionic Bonding - metal to non metal

  Covalent Bonding - non metal to non metal
• IONIC BONDING - transferring electrons (-). metals lose electrons and become positive ions, while non metal gains electrons and become negative ion
• COVALENT BONDING - sharing of electrons between two non metal.
• NON POLAR COVALENT BOND - equal sharing of electrons
• POLAR COVALENT BOND - unequal sharing of electrons
• ELECTRON AFFINITY- amount of energy released