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Ionic Bonds

Ionic Bonds. Ionic Bonds. An ion is an atom with a positive or negative charge. Ions form by atoms gaining or losing an electron. They become positive when they lose one or more electrons They become negative when they gain one or more electrons. Ionic Bonds.

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Ionic Bonds

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  1. Ionic Bonds

  2. Ionic Bonds • An ion is an atom with a positive or negative charge. • Ions form by atoms gaining or losing an electron. • They become positive when they lose one or more electrons • They become negative when they gain one or more electrons.

  3. Ionic Bonds • Ionic bonds occur between metals and non metals. • Metals form positive ions • Nonmetals form negative ions.

  4. Ionic Bonds • Positive ions are called cations • Negative ions are called anions • Cations have lost electrons and anions have gained electrons.

  5. Ionic Bonds • Because opposites attract, when ions form, they bond to one another due to magnetic attraction. • EX: Na (sodium) needs to lose one electron to become stable, Cl (chlorine) needs to gain one electron to become stable. Na becomes positive, Cl becomes negative and they bond due to their opposite charges.

  6. Ionic Bonds • Properties of Ionic Compounds • Hard and brittle solids with very high melting points. • When dissolved in water, they conduct electrical currents. • Electrons more free to move in liquid state vs. solid

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