Iron(II) Sulfide Properties and Charges

The video tutorial explains how to write the formula for iron(II) sulfide. It begins by identifying iron and sulfur on the periodic table, noting that iron is a metal and sulfur is a non-metal, forming an ionic compound. The tutorial highlights the importance of understanding ionic charges, with iron having a 2+ charge and sulfur a 2- charge. These charges must balance to achieve a net charge of zero, resulting in the formula FeS. The video concludes with a clean presentation of the formula, emphasizing the role of Roman numerals in indicating ionic charges.

Which elements are involved in forming iron(II) sulfide?

• Iron and Sulfur

• Iron and Oxygen

• Iron and Nitrogen

• Sulfur and Oxygen

What is the charge of iron in iron(II) sulfide?

• 1+

• 3+

• 2-

• 2+

What is the charge of sulfur in iron(II) sulfide?

• 2+

• 1-

• 3-

• 2-

Why do the charges of iron and sulfur need to add up to zero in iron(II) sulfide?

• To make the compound dissolve in water

• To make the compound magnetic

• To make the compound colorful

• To make the compound stable

What is the final chemical formula for iron(II) sulfide?

• Fe3S2

• FeS2

• Fe2S3

• FeS

What type of compound is iron(II) sulfide?

• Molecular

• Covalent

• Ionic

• Metallic