Mercury(I) Sulfide and Ionic Charges

The video tutorial explains how to write the chemical formula for mercury(I) sulfide. It begins by identifying the element symbols for mercury (Hg) and sulfur, and discusses their respective ionic charges. Mercury has a 1+ charge, while sulfur has a 2- charge. The tutorial demonstrates how to balance these charges to form a neutral compound, resulting in the formula Hg2S. The video concludes with a brief summary and thanks to the viewers.

What is the element symbol for mercury used in the formula for mercury(I) sulfide?

• Mg

• Hg

• Mn

• H

Which group on the periodic table does sulfur belong to?

• Group 14

• Group 17

• Group 15

• Group 16

What is the ionic charge of sulfur in mercury(I) sulfide?

• 2+

• 1+

• 2-

• 1-

How do the charges in mercury(I) sulfide add up to achieve neutrality?

• 2+ and 1-

• 1+ and 2-

• 2+ and 2-

• 1+ and 1-

What is the correct chemical formula for mercury(I) sulfide?

• Hg2S

• HgS

• Hg2S2

• HgS2