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  • resulting molecule (compound)

  • has no net electrical charge

  • outer shells are full

  • no free electrons to form bonds

Figure 2.12 Covalent bonding in four molecules (Biology, 6th Ed., Campbell & Reece)

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

  • More than one covalent bond can form between two atoms

    • single covalent bond

    • double covalent bond

    • triple covalent bond

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

  • single covalent bond

    • one pair of electrons shared by two atoms

    • represented by

  • example, H - H

  • least strong of covalent bonds

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

  • double covalent bond

  • two pairs of electrons shared by two atoms

    • represented by

  • example, O=O

  • stronger than single covalent bond

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

  • triple covalent bond

  • three pairs of electrons shared by two atoms

    • represented by

  • example, N = N

  • strongest covalent bonds

Web/CD Activity 2E:

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