* Chemical Bonding: When elements combine to form a compound, they undergo chemical bonding. This involves the sharing or transfer of electrons, creating a new and distinct structure with its own unique properties.
* New Properties: The arrangement of atoms and the types of bonds formed in a compound give rise to new characteristics. These can be drastically different from the individual elements:
* Physical Properties: Boiling point, melting point, density, color, etc.
* Chemical Properties: Reactivity, flammability, acidity, etc.
Example:
* Sodium (Na): A highly reactive metal, soft, and silvery-white.
* Chlorine (Cl): A toxic, yellowish-green gas.
* Sodium Chloride (NaCl): Common table salt, a white crystalline solid, non-reactive and soluble in water.
In summary: Compounds are entirely different entities from their constituent elements. The chemical bond creates new properties and often drastically alters the characteristics of the original elements.
