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CHEMISTRY CH4 - Coggle Diagram

- - - - In chemistry, resonance structures are the different possible Lewis structures of a molecule or ion that differ only in the position of electrons (especially π-electrons and lone pairs), while the positions of atoms remain the same.
      - ➡️ They are used when a single Lewis structure cannot correctly represent the bonding in a molecule.
      - ➡️ The actual structure of the molecule is not any one resonance structure, but a resonance hybrid — an average of all possible resonance structures, which is more stable.
  - - - If they have equal electronegativity, electrons are shared equally → non-polar covalent bond.
      - If they have different electronegativities, the more electronegative atom attracts the shared electrons more strongly → develops a partial negative charge (δ–), while the other atom develops a partial positive charge (δ+) → polar covalent bond.
    - - IT IS DEFINED AS THE PRODUCT OF MAGNITUDE OF CHARGE AND DISTANCE OF SEPERATION BETWEEN THE CHARGES
      - IT IS A VECTOR QUANTITY
      - ===CHARGE **DISTANCE
- - - - Lattice enthalpy is the amount of energy released when one mole of an ionic solid is formed from its gaseous ions.