Lead(IV) Sulfide and Sulfide Ions

The video tutorial explains how to write the chemical formula for lead(IV) sulfide. It begins by identifying the element symbols for lead and sulfide, noting that lead is a transition metal with a charge of 4+. Sulfide, derived from sulfur, has a charge of 2-. The tutorial demonstrates how to balance these charges to form a neutral compound, resulting in the formula PbS2. The video concludes with a summary of the process and the final formula.

What is the element symbol for lead and its charge in lead(IV) sulfide?

• Pb, 2+

• Pb, 4+

• Pb, 3+

• Pb, 1+

Which group does sulfur belong to in the periodic table?

• Group 16

• Group 15

• Group 14

• Group 17

What is the charge of a sulfide ion?

• 3-

• 2-

• 1-

• 4-

How many sulfide ions are needed to balance the charge of one lead(IV) ion?

• 3

• 1

• 4

• 2

What is the correct chemical formula for lead(IV) sulfide?

• Pb2S3

• PbS

• PbS2

• Pb2S