The incomplete table below shows selected properties of compounds that have ionic, covalent, or metallic bonds. Row Bond Electrical conductivity Likely property 1 Ionic Yes High melting point 2 ? Yes ? 3 ? No ? Which information would best fill the blanks in row 3? metallic bond and low melting point metallic bond and high melting point covalent bond and low melting point covalent bond and high melting point
The information that best fits row 3 is: covalent bond and low melting point The covalent bonding will mean that there are no free electrons or ions in order to allow electricity to flow. Moreover, covalent bonds are not as strong as ionic bonds, which means that covalent compounds have lower melting points than compounds with ionic or metallic bonding.