Question

zinc sulfide is used in glow - in - the - dark face paint. write the chemical formula of zinc sulfide. refer to a periodic table and a list of polyatomic ions.

Explanation:

Step1: Determine zinc ion

Zinc (Zn) forms a $2+$ ion, $Zn^{2+}$.

Step2: Determine sulfide ion

Sulfur (S) forms a $2 -$ ion, $S^{2-}$.

Step3: Write chemical formula

To balance the charges, we need one $Zn^{2+}$ and one $S^{2-}$. So the chemical formula is $ZnS$.

Answer:

$ZnS$