Zinc Sulfide Compound Properties

The video tutorial explains how to name the compound ZnS, which consists of a metal (zinc) and a non-metal (sulfur). It is identified as a binary ionic compound. The process involves writing the name of the metal as it appears on the periodic table, followed by the non-metal with its ending replaced by 'ide', resulting in the name zinc sulfide. Although zinc is a transition metal with a consistent two-plus ionic charge, there is no need to use Roman numerals in its name. The tutorial concludes with a brief sign-off by Dr. B.

What type of compound is ZnS classified as?

• Binary ionic compound

• Ternary compound

• Covalent compound

• Molecular compound

Which element is the metal in ZnS?

• Oxygen

• Zinc

• Nitrogen

• Sulfur

What suffix is added to the non-metal in ZnS?

• ate

• ide

• ite

• ous

Why is no Roman numeral needed in the name of zinc sulfide?

• Sulfur always has a two plus ionic charge

• Zinc always has a two plus ionic charge

• Sulfur has a variable charge

• Zinc has a variable charge

What is the ionic charge of sulfur in ZnS?

• One minus

• Two minus

• One plus

• Two plus