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Figure 2.14 Electron transfer and ionic bonding (Biology, 6th Ed., Campbell & Reece) Figure 2.15 A sodium chloride crystal (Biology, 6th Ed., Campbell & Reece)

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Web/CD Activity 2G: Ionic Bonds

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Atoms & Molecules - Chemical bonds

strong chemical bonds – ionic bonds

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  • resulting compound is electrically neutral

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    • covalent bonds

      • nonpolar covalent bonds

      • polar covalent bonds

  • weak chemical bonds

    • hydrogen bonds

Atoms & Molecules - Covalent bonds, the sharing of electrons, joins atoms into molecules

  • covalent bond

  • occurs when two atoms share one or more pairs of outer shell electrons

    • results in both atoms having a full outer electron shell

  • results from transfer of electron from one atom to another atom

    • resulting in two ions

      • cation

      • anion

  • oppositely charged ions are attracted to each

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Atoms & Molecules - Covalent bonds, the sharing of electrons, joins atoms into molecules

  • why is a covalent bond so stable?

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Atoms & Molecules - Ionic bonds are attractions between ions of opposite charge

  • two ions with opposite charge attract each other

  • attraction called an ionic bond

    • resulting compound is electrically neutral

Atoms & Molecules - Ionic bonds are attractions between ions of opposite charge

  • ionic bond

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