chem

    Master this deck with 12 terms through effective study methods.

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    What happens when non-metal atoms bond?

    They share pairs of electrons to fill their outer shells.

    How do covalent bonds form?

    Electrostatic forces attract positively charged nuclei to shared electrons.

    What is a characteristic of covalent bonds?

    They are strong due to shared electron pairs.

    Why do covalent compounds have low melting points?

    Weak intermolecular forces require less energy to break.

    How do giant covalent compounds differ from simple molecular substances?

    Giant compounds have high melting points due to stronger bonds.

    What is the implication of having a full outer shell?

    Atoms achieve stability similar to noble gases.

    What is the molecular formula of ethane?

    C2H6, derived from its structural diagram.

    What are polymers made of?

    Long chains of repeating units held by covalent bonds.

    Why do polymers generally have higher boiling points than simple molecular substances?

    Stronger intermolecular forces require more energy to break.

    What do dot and cross diagrams represent?

    They show the origin of electrons in covalent bonds.

    What is a key feature of simple molecular substances?

    They consist of molecules held together by strong covalent bonds.

    Why can't molecular compounds conduct electricity?

    They lack free electrons or ions.