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Protons + Neutrons + Electrons = an atom (of elements)
Atoms + atoms = compounds
Compounds + compounds = stuff around us.
A chemical bond is the force of attraction that holds two atoms together.
An ionic bond is the force of attraction between two oppositely charged ions.
Metals lose electrons to form positive ions in an ionic bond
Nonmetals gain electrons to form negative ions in an ionic bond.
Ionic compounds form when a metal reacts with a nonmetal. These compounds are neutral.
Ionic compounds are brittle, have high melting points, and tend to dissolve easily in water.
Look here for a good website about chemical bonding
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