Final answer:
Sulfur and nitrogen can form both polar covalent and ionic bonds.
Step-by-step explanation:
Sulfur and nitrogen can form different types of bonds depending on the elements involved and their electronegativity. One type of bond that sulfur and nitrogen can form is a polar covalent bond. In this type of bond, the electrons are shared between the atoms, but due to the difference in electronegativity, there is an uneven distribution of charge.
For example, in the compound sulfur dioxide (SO2), sulfur and oxygen form a polar covalent bond. Sulfur is less electronegative than oxygen, so the oxygen atom pulls the shared electrons closer to itself, resulting in a partial negative charge on the oxygen atom.
Another type of bond that sulfur and nitrogen can form is an ionic bond. In this type of bond, one atom donates electrons to another atom, creating positive and negative ions that attract each other. For example, in the compound sodium cyanide (NaCN), sulfur and nitrogen form an ionic bond. Sulfur donates electrons to nitrogen, creating a negatively charged nitrogen ion and a positively charged sulfur ion.