Sulfur (S) is a nonmetal, so it will typically form ionic compounds with metals.

Here's why:

* Metals tend to lose electrons, forming positively charged ions (cations).

* Nonmetals tend to gain electrons, forming negatively charged ions (anions).

For example, sulfur can combine with sodium (Na), a metal, to form sodium sulfide (Na₂S). In this compound, sodium loses an electron to form Na⁺, and sulfur gains two electrons to form S²⁻.

Here are some other examples of metals that can form ionic compounds with sulfur:

* Potassium (K): Potassium sulfide (K₂S)

* Calcium (Ca): Calcium sulfide (CaS)

* Aluminum (Al): Aluminum sulfide (Al₂S₃)

Remember that the specific charges of the ions involved will determine the ratio in which they combine to form the compound.