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Formation of compounds

Atoms Molecules Ions Chemical Equations On-line practice



  1. Compounds can be formed by either sharing of electrons between atoms or transferring electrons from one atom to another.
  2. Atoms share electrons amongst themselves or transfer electrons from one atom to another so as to become electronically more stable, like the noble gases (i.e. have full outer shell).
  3. When atoms share electrons amongst themselves, a covalent bond is formed.
  4. When atoms transfer electrons to another atom(s), an ionic bond is formed.


Formation of ionic compound ] Formation of covalent compound ]