Properties of compounds

Molecules:

• have covalent bonds and are always polar

• have covalent bonds and are always non-polar

• have covalent bonds and can be polar or non-polar

• have ionic bonds and are always polar

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The following properties are all characteristics of ionic compounds EXCEPT

• solid at room temperature

• soft

• crystal lattice structure

• conduct electricity when dissolved in water

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Which types of elements become cations?

• non-metals

• metals

• metalloids

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Nonmetals tend to 

• gain electrons
• lose electrons

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Ionic bonds could be best described as:

• A bond formed when 2 atoms share electrons

• A firm handshake

• An electrostatic attraction between oppositely charged ions

• An electrostatic attraction between anions

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Which type of bond is formed from the sharing of electrons?

• ionic bond

• covalent bond

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What set of elements is most likely to form a covalent compound?

• Na and O

• Na and K

• O and C

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Which set of elements is most likely to form an ionic compound?

• Na and O

• C and O

• Na and K

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Molten or dissolved compound conducts electricity.

• ionic compound

• covalent compound

Have very strong intermolecular forces

• ionic compounds

• covalent compounds

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