Which of the following compounds would you predict to have the highest melting point?

True or False. The molecule, SiF4, is nonpolar.

In the molecular orbital description of the F2− ion,  the bond order is             . Hint:  Fill in the MO diagram for the valence electrons, assuming the four core electrons fill the σ1s and σ*1s molecular orbitals. Hint:  Bond order = 1/2

Which of the following molecules has exactly three equivalent resonance forms?

Based on its Lewis symbol, how many covalent bonds is silicon (Si) likely to form?

Based on its Lewis symbol, how many covalent bonds is bromine (Br) likely to form?

Which molecule contains bonds that would be classified as ionic? Hint: Use electronegativity differences to make this determination.

Based on its Lewis symbol, how many covalent bonds is sulfur (S) likely to form?

Which of the following compounds would you predict to have the lowest melting point?

In the dominant Lewis structure for ozone, O3, how many nonbonding electron pair(s) is/are on the central atom?